Message Bus, which is coming out of stealth today, helps businesses deliver emails.

Web companies these days often enlist infrastructure service providers like Chargify, Twilio, SimpleGeo to implement their billing systems, voice and SMS services, databases of places, and other projects. Start-ups don’t have to spend as many precious resources hiring specialists and building things from scratch that aren’t their main product, and afterwards can more easily scale as they grow. Some people call this phenomenon “infrastructure apps,” and many of the providers are themselves built on top of Amazon Web Services.

Message Bus is not the first or only company to apply this concept to email; for instance, there are already start-up SendGrid (see our video interview) and Amazon Simple Email Service.

However, Message Bus aims to be different by providing live analytics about what happens to emails (similar to Chartbeat for Web site monitoring), by not requiring users to set up their own email servers, and by dynamically scaling to match customers’ needs, said co-founder Narendra Rocherolle in an interview last week.

Message Bus is run by Rocherolle (as president) and his long-time business partner Nick Wilder (as CEO). Its CTO is Twitter Director of Operations Jeremy LaTrasse, who had been with Twitter since it started at Odeo until leaving last spring. While being responsible for Twitter’s infrastructure might not always be something to brag about, LaTrasse had among other things built the Twitter system that sends users notification emails, a direct precedent for Message Bus.

Message Bus was founded out of Rocherolle and Wilder’s Start Project incubator in Mill Valley, Calif. Its technology team is currently working out of Pivotal Labs in San Francisco.

Rocherolle said he wants Message Bus to ultimately be “an agnostic messaging architecture,” calling this “Twitter’s road not taken.” He explained, “You used to hear Twitter talk about all these objects communicating– even parking meters are going to have tweets–but now they are much more concerned with the content.”

Rocherolle added that Message Bus hopes to get approval from major email providers to eliminate relaying email through SMTP from certain senders, and to add other forms of messaging like SMS.

A new Silicon Valley business incubator called The Start Project has recruited a high-profile group of entrepreneurs as advisers, which it announced today on its Web site.

Twitter co-founder Biz Stone, WordPress co-founder Matt Mullenweg, former Google (GOOG) exec and angel investor Chris Sacca, as well as Whiskey Media’s Mike Tatum and Jeffries & Co. Managing Director David Liu, have all agreed to help the company’s start-ups before and during their creation.

The Start Project is the brainchild of serial entrepreneurs Narendra Rocherolle of 83 Degrees, who co-founded a range of companies, and Josh Felser of Spinner and Crackle.

Polaris Venture Partners is also involved, lending office space in San Francisco and possible investments in whatever innovative ideas bubble up, with a first-look option.

“We can do a lot of stuff, such as pairing a CEO with an adviser with an amazing track record,” said Rocherolle in an interview with BoomTown. “It’s kind of a Justice League for start-ups.”

The Start Project’s description of itself on its Web site reads:

“The start project is a collaborative effort to bring great ideas to market. While the founders have a history of successful exits (over half a billion dollars), they are now focused on the initial stages of business creation including: idea generation, software development, product vision, team building, and investment.”

Facebook’s Lexicon counts “occurrences of words and phrases” on its Walls over time.

Facebook, which had tried to buy Twitter late last year, has recently done a redesign that some critics are saying is too much of a panicked reaction to the hype around the microblogging service, although Twitter’s audience is just a tiny sliver of Facebook’s.

Still, Twitter’s becoming the digital trend of the moment, especially in the what’s-hot-today media, has to have last year’s golden child, Facebook founder and CEO Mark Zuckerberg, more than a just little irked.

Here’s the chart (click on it to make it larger):