Los Angeles - BitTorrent, the file-sharing software company founded by the creators of the peer-to-peer protocol, has returned the $17 million financing round it announced in June to investors, opting instead to take $7 million at a substantially reduced valuation of $28 million, TechCrunch reported.

New York - Facebook backer Accel Partners' announcement of a new $480 million late-stage venture fund is fueling speculation that the venture capital firm will make a new investment in the online social network, according to published reports.

Mountain View, Calif. - Kosmix, the developer of a search engine that organizes the Web by topic, has raised $20 million in its fourth round of venture capital financing, led by Time Warner Investments.

Washington - SB Nation, a new network of sports-related blogs, has raised a "mid-seven-figure" sum of venture capital financing led by Accel Partners, SportsBusiness Journal reports.

London - Playfish, a developer and publisher of games for social networks, said on Tuesday that it has raised $17 million in its second round of venture capital financing, led by Accel Partners and Index Ventures.

San Mateo, Calif. - AdMob, a developer of mobile advertising technology, announced that it has raised $15.7 million in its third round of funding, led by Sequoia Capital's Growth Fund.

San Francisco - BitTorrent, a provider of peer-to-peer-based content delivery services, has raised $17 million in a third round of funding, led by DCM and Accel Partners, PEHub.com reported, citing a regulatory filing.

Redwood City, Calif. - Amobee Media Systems, a provider of mobile ad delivery technology, announced on Wednesday that it has raised an undisclosed sum of new funding, from investors including Motorola (NYSE: MOT), Cisco Systems (NASD: CSCO), Telefonica, Vodafone, Accel Partners, Globespan and Sequoia Capital.

London - Playfish, a U.K.-based developer of games for social media, has raised a $1 million round of bridge financing from Accel Partners, VentureWire reported.

San Francisco - Mochi Media, the operator of an advertising network for online games that claims over 60 million unique monthly visitors, announced on Thursday that it has raised $10 million in its second round of funding, led by Shasta Ventures with support from previous backer Accel Partners.

Seattle - Wetpaint, the provider of an embeddable wiki platform for social publishing sites, announced on Monday that it has raised a $25 million third round of funding, co-led by DAG Ventures and an unnamed financial investor.