SurveyMonkey, the quiet but profitable and fast-growing Web survey company, is buying online forms start-up Wufoo.

While the terms of the transaction for the Tampa, Fla.-based Infinity Box–makers of Wufoo–were not disclosed, sources said the price was $35 million in cash and stock.

Besides bringing together two delightfully kooky start-up names, the acquisition gives the Palo Alto, Calif.-based SurveyMonkey another tool to expand its offerings.

The Silicon Valley company’s most recent purchase was telephone-polling firm Precision Polling. And, in January, it acquired a minority stake in ClickTools, a U.K.-based survey provider on Salesforce.com’s AppExchange.

Here’s the official press release:

SURVEYMONKEY ACQUIRES WUFOO

Leader in online surveys adds leader in online forms to expand services for customers

Palo Alto, Calif. and Tampa, Fla., April 25, 2011– SurveyMonkey, the leader in Web-based survey solutions, today announced the acquisition of Infinity Box Inc., the makers of Wufoo, a web application to create online forms. As part of the transaction, the entire Wufoo team will relocate to Palo Alto to join the combined company and help fuel SurveyMonkey’s continuing growth. The terms of the transaction were not disclosed.

Wufoo was created in 2006 to provide an easy and efficient process for creating online forms, one of the most essential and commonly used interfaces for collecting data on the web. The application’s HTML form builder automatically builds the database, backend and scripts needed to collect and understand data so users can create surveys, contact forms, registrations and other forms without writing code. In addition, customers frequently use Wufoo’s forms to process online transactions. With Wufoo, a process that previously required hours of work by web developers can now be done by anyone with web access in a matter of minutes.

“Wufoo is the market leader in online form creation and a perfect fit for SurveyMonkey,” said Dave Goldberg, SurveyMonkey CEO. “From the product and business model, to the team and culture, we are absolutely delighted to welcome the company into the SurveyMonkey family and look forward to increasing the reach and scale of an already outstanding product through our platform.”

“Everyone at Wufoo is very excited about joining the SurveyMonkey team, and the expansion opportunities for our business that will result from this combination,” said Wufoo co-founder Kevin Hale. “By leveraging SurveyMonkey’s international resources, knowledge scaling infrastructure and expertise with large data collection systems, we will be able to increase the scope, performance and reliability of Wufoo’s services.”

The acquisition will allow SurveyMonkey to offer online forms, in addition to surveys, to collect users’ insights and data. Over the past two years SurveyMonkey has continued to enhance services by actively evaluating opportunities to partner and invest in complementary businesses. In January, SurveyMonkey announced it had formed a strategic partnership with ClickTools, a leading survey provider on salesforce.com’s AppExchange. In 2010, SurveyMonkey successfully completed a $100 million debt financing and also acquired telephone-based survey company Precision Polling.

Salesforce.com is New York this week for its Cloudforce 2011 event tomorrow, and it has come armed with some news: An update to its Service Cloud customer service application that will give companies better tools to pay attention to how people talk about them on Facebook and Twitter and other social media sites.

It’s called Service Cloud 3, and–as the name suggests–it’s a cloud-based way to keep track of customer service complaints.

Kevin Smith’s diatribe against Southwest Air on Twitter is a good example. But, there’s also countless Web forums, discussion boards and blogs to follow as well.

No company wants to be on the wrong side of a customer complaint spreading at retweet speed.

Agents can work from any mobile device, including the iPad 2, as well as a new app in the Salesforce AppExchange from Radian6, a social media monitoring platform.

Salesforce already has 15,000 customers using Service Cloud, including KLM Dutch Airlines, Ally Bank and Nikon.

This is just one part of Salesforce’s New York visit, which comes at a relatively bullish time for the company.

Its stock more than doubled from $70 to more than $150 a share over the last year, before heading south for a cooling off period. It closed at $128.32 Wednesday.

When it reported earnings last week, Salesforce said its sales would be in the range of $480 million to $482 million, topping the estimates of analysts who reckoned sales would be closer to $470 million.

But not everyone is applauding. The Wall Street Journal’s Brett Arends raised some interesting questions about Salesforce, especially in how it is spending its cash, in a column last week, including $278 million for land to build a new campus?

And how about that $212 million for Heroku?

In fact, John Dillon, a former Salesforce CEO himself, said the company paid way too much for Heroku, a hosted service for building applications written in Ruby on Rails, the open-source Web-development language.

What does current Salesforce CEO Marc Benioff think of all this? Check back later, since I will be talking to him Thursday afternoon about this and more.

Tucker is a 13-year veteran of Sun Microsystems whose last job was as Sun’s CTO of cloud computing. He was also VP of the AppExchange at Salesforce.com. He’s also known for “Lew’s Law,” which he describes as more of an informal observation about how far the cost of computing can realistically fall.

I caught up with him last week in New York City to talk about what Cisco, long the powerhouse of networking, plans to do in the cloud.

NewEnterprise: First off, what is Lew’s Law?

Lew Tucker: It’s just an observation, not a real law, that the price of computing will never be free, because it requires energy to compute. Computing is really about changing the state of physical bits, and that requires energy. It’s great that we’re driving the costs down. Moore’s Law is hammering the costs. But there is a lower limit. Right now the dominant cost is around managing software, operations and everything else. So we can take a lot of those costs out through automation.

NewEnterprise: When I think of Cisco I think of industrial-strength routers and switches. How do you get from there to cloud computing?

LT: Eight months ago I thought the same thing. I was with Sun for many years and then left to go to Salesforce.com to do software as a service. I became very enamored of the Salesforce model. I came back to Sun to build the Sun Cloud, which was to be a direct competitor to Amazon Web Services. I was an Amazon user myself and I loved how you could so easily spin up as many servers as you wanted without having to buy them, configure them and so on. Building a cloud is another thing entirely. When Cisco called me, I said to them, “You’re about routers and switches and I’m all about complex distributed computing systems.” And Cisco said they were really about networking and making distributed systems. I started digging into it and realized there was a really unique position at Cisco if you think of cloud computing as a fully automated system with different elements. Some of those are networking elements, and some of those are integrated boxes with computing and storage and networking all in one. Some are networking services.

NewEnterprise: When you think about how cloud computing works, you really can’t do anything without fast connections between one system or another, which is something that Cisco knows very well.

LT: The network has always been a shared piece of infrastructure. There are a lot of different applications running on different servers that are trying to reach either each other or their endpoints. So there’s an awful lot that’s going into the network to make that happen in a fair and efficient way.

NewEnterprise: So what hardware is Cisco building here?

LT: We build pre-integrated compute, storage and networking that we’re calling our Unified Computing Systems. You can buy a rack of these systems, and they’re driven by a set of APIs [application programming interfaces]. We’re not alone in that. Hewlett-Packard does something similar. Then the customers add in their own preferred storage environment, like EMC or NetApp, or they can build their own.

NewEnterprise: What kind of use cases are you seeing in companies? What are your customers asking for right now?

LT: Right now what they are asking about is collaboration services, the integration of video and voice and calendaring and messaging. We’ve seen consumer services like Facebook change what people expect at the office. We have a collaboration product called Quad that looks just like Facebook. WebEx is a Cisco service. We’re working on offering that as both a hosted form and one that runs inside the customer’s own environment.

NewEnterprise: So there are a lot of cloud providers out there already–Amazon, Google and Microsoft, which has its Azure platform. They’ve already deployed their services and have relationships with vendors. How do you see the market shaping up, and what is Cisco’s place in it?

LT: I think there’s going to be two or three large cloud providers, but then there will be many smaller ones who specialize in delivering specialized services. Take health care. In that industry, groups of companies are going to get together and offer a HIPAA-compliant cloud. You’ll also see something similar happen around financial services. Those are two industries that have very specific needs. The cloud will be dominated by a few large providers for sure, but there will also be many specialty cloud providers.

NewEnterprise: You’ve been on the job about six months. What have you learned so far?

LT: I’ve learned that there’s an amazing amount of technology within Cisco. It has the largest concentration of network engineers in the world. Part of my job is to go and align our products and roadmaps with this future world that we’re moving into and to uncover a lot of the new approaches to how we solve different networking problems. I’m an engineer, and I like nothing better than being in a room with a bunch of other engineers with a whiteboard as they all battle it out. I’ve also learned that building cloud infrastructure is a lot harder than everyone thought.

Salesforce.com will be acquired in 2007. We believe the growing importance of online delivery of software and business services will make Salesforce.com (and particularly its AppExchange hub) a very tempting target to both large players (like IBM, SAP, Oracle, Microsoft) still struggling to scale down and move online, and consumer-heavy players (like Google, Yahoo, AOL) trying to ‘scale up’ to the business market as a way to further monetize their online presence.”

–IDC Predictions 2007

Salesforce.com CEO Marc Benioff (photo, right) wasn’t kidding when he said in May of 2007, “We’re the Google of business.” The customer-relationship software pioneer this morning announced an alliance with Google (GOOG) that will see it integrating Google’s online services into the Salesforce.com (CRM) platform.

Christened Salesforce for Google Apps, the offering embeds Gmail, Google Calendar, Google Talk and Google Docs directly into Salesforce.com’s core sales force automation, marketing and customer-service applications.

The partnership is quite an endorsement of business-workspace applications delivered from the cloud. It’s also an aggressive move against Microsoft’s (MSFT) Dynamics Live CRM, Redmond’s customer relationship management software, which is integrated with its Office suite.

Together Google and Salesforce.com are clearly seeking to challenge Microsoft’s multibillion-dollar Office franchise. As Marc Benioff, CEO of Salesforce.com, told the New York Times, “The enemy of my enemy is my friend, so that makes Google my best friend.” And perhaps even a potential acquirer.