A little over a month after it gobbled up primary competitor Rotten Tomatoes, Flixster, a social-networking site for movie enthusiasts, has landed $12.5 million in a new round of equity and common stock, according to a filing with the SEC. The San Francisco company has already been growing fast, but the new money could kick it up another notch.

The January Rotten Tomatoes acquisition came at an opportune time. Flixster was looking to expand its market share, and News Corp., Rotten Tomatoes’ parent company, was looking to purge subsidiaries that were not so relevant to its core business. Both succeeded — with Flixster consolidating an audience of 30 million unique monthly visitors.

But this is just one of several recent deals that has boosted the Flixster brand. At the start of February, it announced a partnership with Skyhook Wireless to provide theater information and showtimes to Android application users. It also recently teamed up with The Hollywood Reporter to combine Flixter’s cinematic quizzes, games and polls with the publication’s editorial content — just in time for awards season.

These two developments indicate the company’s desire to expand in multiple directions. For a while now, its core competency has been allowing users to easily share movie reviews and rankings with one another. Now it’s hopping into the location-based information game with Skyhook and attempting to extend its original editorial content while reaching new prospective users.

Flixster previously raised $7 million over two rounds from Lightspeed Venture Partners, Pinnacle Ventures and LinkedIn founder Reid Hoffman.

Skybox Security, provider of risk assessment and compliance enforcement software to companies and organizations of all sizes, has brought in $2 million through a fourth-round offering of preferred stock, according to a filing with the SEC. Based in San Jose, Calif., the company is backed by Benchmark Capital, Lightspeed Venture Partners, Mitsubishi, Carmel Ventures, Valley Ventures and Rembrandt Ventures. It has now raised $36.5 million to date.

Mercantila, a San Francisco-based portal of related specialty retail web sites, has tacked $500,000 onto a now $2.5 million in convertible promissory notes and warrants, according to a filing with the SEC. The company is backed by Lightspeed Venture Partners, among others.

Kosmix, a search engine that provides comprehensive pages of information in response to queries, has brought in $238,000 from a new stock issuance related to its recent acquisition of CruxLux, a startup that determines connections between people, places and things. Based in Mountain View, Calif., Kosmix is backed by Accel Partners, DAG Ventures, Lightspeed Venture Partners and Time Warner. It raised $20 million last December.

This post corrects an earlier one published today reporting that Kosmix had brought in $238,000 in equity.

Kosmix, a search startup that builds comprehensive pages of information to answer your search queries, has brought in $238,000 in new equity, according to a filing with the SEC. Based in Mountain View, Calif., the company is backed by Accel Partners, DAG Ventures, Lightspeed Venture Partners and Time Warner. It raised $20 million in funding last December.

Link_A_Media Devices, maker of technology used to recover and transmit data on storage devices, has brought in $18 million in a first round of funding. The Santa Clara, Calif. company is backed by Lightspeed Venture Partners, Keynote Ventures, SunAmerica Ventures, and Itochu Technology Ventures.