Online classifieds network Oodle has raised another $5.6 million from the same investors that funded its $11 million second round in March 2007—Greylock Partners, JAFCO Ventures, and Redpoint Ventures. Turns out that in addition to a $5 million first round in 2006, the San Mateo, Calif.-based company also raised $3 million in seed funding—which gives Oodle total funding of $24.6 million. Oodle’s 200-plus partner network includes MySpace, Comcast (NSDQ: CMCSA), Cox Broadcasting, and Wal-mart. The company also has a deal to power Facebook’s Marketplace; that should go live later this quarter.

In the announcement, the company said Oodle’s traffic tripled in 2008 and broke 10 million visits last month, also that it aggregates more than 500,000 listings a day. CEO Craig Donato blogged that the economy could be a plus: “More and more people are turning to classifieds in this tough economic environment to find great deals or raise extra cash.”