San Mateo-based Oodle, an online classified search engine, has expanded its service into real estate. The firm said today that it has partnered with iHomefinder to allow real estate brokerages to feature their listings on Oodle and its classifieds network. The deal provides what the firm describes as an "MLS-compliant" solution for brokerages to list in its index. Oodle said that it is indexing real estate listings from individual agents, brokers, FSBO, foreclosures, and new home web sites. Oodle is backed by Greylock.