The Meltwater Group, an online media intelligence company, has acquired IceRocket, a social search engine that provides real-time search (among other things). Combined together, IceRocket and Meltwater plan to provide public relations, marketing, communications and advertising pros “with the most comprehensive set of tools for monitoring, analyzing and engaging in relevant conversations across social channels.” Details of the acquisition were not disclosed.

All of IceRocket’s employees will join Meltwater.

Meltwater delivers online news and social media monitoring, as well as search engine marketing solutions. Meltwater currently has 57 offices around the world serving more than 20,000 customers. IceRocket is a real-time search engine that crawls over 200 million blogs, as well as tweets, news, and videos that are each profiled, categorized and ranked.

In addition to IceRocket, Meltwater acquired social CRM company JitterJam in March 2011 and BuzzGain last year. Meltwater plans on acquiring more businesses and technologies to help further expand their product suite.