San Francisco-based early stage investor Accelerator Ventures is seeking $25 million for a planned second fund, according to a securities filing.

UrbanSitter, an online service for parents and sitters to connect through people they know, has closed a $6 million Series A round of funding. The round was led by Canaan Partners with participation from existing investors First Round Capital, Menlo Ventures, Rustic Canyon Partners and several angels.

Cloud-based gaming company Gaikai, which raised $30 million in venture capital about 11 months ago, has put itself on the block with a $500 million price tag, according to a Fortune report.

San Francisco-based UrbanSitter has raised $1.75 million in seed funding led by First Round Capital. Rustic Canyon Partners, Menlo Ventures and several angel investors also participated in the round. UrbanSitter is an online service for parents and babysitters to connect through people they know.

Serious Energy Inc., a maker of energy efficient material used in windows for buildings, has raised $2.97 million of a proposed $33.9 million funding round, according to an ammended filing with the Securities and Exchange Commission. peHub.com reported previously that Serious Energy had recently raised an undisclosed amount from GSV Capital, a closed-end, publicly traded investment fund that’s been investing in venture-backed private companies.

The company’s products have been used in the Empire State Building and the New York Stock Exchange. Serious Energy’s board includes venture capitalists John Babcock, a partner with Rustic Canyon Partners; NEA’s Forest Baskett; Thomas Galuhn, a senior managing director at Mesirow Financial; and Paul Holland, general partner for Foundation Capital.

(Reuters) – Little-known online games company Trion Worlds, after raising more than $100 million in venture capital since 2006, is looking at becoming the newest debutante at the digital media IPO ball. Not unlike larger and better-known games company Zynga, which filed for an IPO of up to $1 billion in July, Trion is considering [...]

Los Angeles-based cloud gaming company Gaikai Inc. has named Brendan Iribe as its chief creative officer and senior vice president of user experience. Iribe was previously the co-founder, president and chief executive of Scaleform, a gaming user interface company bought by Autodesk in March. Gaikai is backed by Benchmark Capital, TriplePoint Capital, Rustic Canyon Partners, Limelight Networks and Intel Capital.

Reply agreed to pay $60 million in cash and stock for MerchantCircle, bringing a nice payday to backers Scale Venture Partners, Rustic Canyon Partners, Steamboat Ventures and IAC. The two companies expect substantial synergies as they combine their businesses and seek additional acquisitions. MerchantCircle runs an online network that allows local merchants to advertise and [...]

The Mountain View, Calif.-based online business directory and social network MerchantCircle has sold for $60 million in cash and stock after raising $14.3 million over two rounds from Rustic Canyon Partners, Scale Venture Partners, Square 1 Bank, and Steamboat Ventures. The company was purchased by the online advertising business Reply, based in San Ramon, Calif. [...]

Perfect Market, the California-based traffic and content optimization solutions provider for web publishers, completed a $9 million Series D fundraising, the company revealed Tuesday.

Capital will be used to expand on Perfect Market’s existing sales staff and to open up new offices, said Julie Schoenfeld, CEO.

The company has raised three prior rounds of capital totaling nearly $20 million and Schoenfeld said, of the Series D funding, “it’s entirely possible this would be our last round” of fundraising. Prior rounds included Idealab, Rustic Canyon Partners, the Tribune Co., and Trinity Ventures. Each of the investors also joined in for Perfect Market’s Series D. It raised $5.1 million in 2007, $8 million in 2008 and $6 million in 2010…