For Serious? Slide Valued at $500M

Slide has taken $50 million from Fidelity and T-Rowe Price, according to Brad Stone at the New York Times, exchanging a 9-percent stake of the company at a valuation of $500 million. Kara Swisher of BoomTown had first reported inklings of the news this morning.

Slide makes applications that live within social networks like Facebook — such as FunWall, Top Friends and SuperPoke — which are parasitic of other people’s users but also have interesting implications for interactions that are independent of those platforms.
Though I’d say people are right to be skeptical of the widget space, it’s both extremely popular and hotly contested. The expectations may be getting too high, though; Slide CEO Max Levchin has said he will not consider Slide a success until it is worth more than what he sold PayPal for: $1.58 billion.