The New York Times reports that About.com has been on the block for weeks, attracting bids from Google, Yahoo, The New York Times, AOL and AskJeeves in an auction process run by Goldman Sachs. Final bids, according to an unnamed source, were to be due yesterday, expected to fetch a price between $350 million and $500 million. Primedia, About.com's current owner, bought About.com in late 2000 for $690 million.