Our apologies to Ms. Ariel Waldman — she is not dating Cal Henderson: "I need dates — stop ruining my game, yo," she Twitters. Good, because that would make for some awkward meetings at Pownce, where she spends time as a community manager working with cofounder Leah Culver, a former Henderson paramour. This also means that polytalented Flickr code jock Cal Henderson is probably available. Probably. "How did Valleywag miss the girl I was actually there with?" he later asked us.

Stubblicious Flickr developer Cal Henderson and his "fake wife," Pownce community liaison Ariel Waldman, were sharing a precious booth with their entourage at yet another overpacked Seesmic party. Here, Waldman tries to chat with Laughing Squid founder Scott Beale over the din. Mahalo CEO Jason Calacanis and Twitter cofounder Evan Williams, probably fed up with the crowds, have ditched 330 Ritch for the Plista party at Fluid.

When we popularized "the 250" as a nickname for San Francisco's Internet cool-kids crowd, we didn't realize how literal the incest was. Take the flirtation between Flickr's engineering chief, Cal Henderson, and Ariel Waldman, the community manager of Pownce, an online file-sharing service. Pownce was cofounded by Leah Culver, Henderson's ex-girlfriend, who has also dated around the scene. Henderson and Waldman traveled to Hawaii together, and have made jokes — on Twitter and Flickr, of course — about Henderson wishing Waldman shared his last name and calling her his "fake wife." It's all so darling, veering on disturbing.

Vancouver-based NowPublic is ostensibly all about citizen journalism. But since Guy Kawasaki sold Truemors to it and signed up as an advisor, it's becoming better known for publishing flattering lists of "influencers," supposedly ranking them according to various social media metrics. The first "Most Public" list focused on New York, but a new list for the Valley and San Francisco is "coming soon." And by virtue of being included in the latest edition, we received an early copy as a press release. Who comes out on top? Ubiquitous attention slut Robert Scoble, naturally. Full list after the jump.

Don't call Ariel Waldman a "whore" where Google can hear you. That's the only firm conclusion we can draw from a confusing fracas that left even Twitter cofounder Biz Stone unsure who can call whom a whore on the service. Waldman, a blogger and community manager at quasi-rival messaging site Pownce, called out Twitter for allegedly failing to uphold its own terms of service, setting off an online firestorm.