Tumblr Raises Another $5 Million From Spark and Union Square. Now It Wants Your Money.

Tumblr’s David Karp, seen carpet surfing on the cover of New York Magazine this week, says his hipster blog service is ready to become a real business. Karp’s VC backers seem to believe him.

More Money for “Real Time” Ad Tech: AppNexus Raises $5 Million

AppNexus, an ad-buying “platform,” has raised $5 million in round led by Kodiak Venture Partners, along with Venrock and First Round Capital. The company is one of many trying to take advantage of “real-time” bidding for Web display ad inventory.
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