Socialmedian, a social news start up, has been bought by Xing, the Germany based business social network. Xing is similar to LinkedIn, and is positioned to utilize Socialmedian to provide its professional services to users. Socialmedian will receive about $4 million in cash and stock, with also be paid an earn-out based on performance for up to 2.5 million euros.

IMDB, the Internet Movie Data Site, owned by Amazon , has acquired  Box Office Mojo, a popular movie data site. The sale will allow IMDB to provide more comprehensive box office data figures, and integrate some of  its film and TV credits data on BOM. The terms of the sale were not disclosed.

The humor Site, National Lampoon, expands into the e-commerce market with the acquisition of JerkassClothing.com that sells youth and college oriented t-shirts. The terms of the sale were not disclosed.

RealEstate.com has bought certain assets of New Homes Realty, an online real estate company. New Homes Realty’s cache of Web sites, that includes NewHomes.com providing interested home shoppers a database of thorough real estate information for new and existing homes,  will now be run by RealEstate.com. As an Internet-enabled real estate brokerage that operates in 14 markets with more than 1,100 sales agents, RealEstate.com allows consumers a more efficient way to buy or sell homes by utilizing real estate services, tools, and helpful advice. Financial terms of this deal were not revealed.

A digital content company, hswinternational.com, has acquired the health information social networking site, dailystrength.org. Dailystrenght was launched in March of 2007, and it hosts approximately 500 communities that relate to issues such as illnesses, parenting, divorvce, and weight loss. According to the terms of the deal, dailystrenght will be paid $3.125 million in cash, and will receive an additional payment of up to $3.525 million, based on pageviews increase. It is interesting to note that the additional amount is based on pageviews increase, rather than revenues. 

Amazon.com, Inc. has announced its acquisition of AbeBooks, an internet source for used, rare, and out-of-print books. AbeBooks with its network of websites ( Abebooks.com, Abebooks.ca, Abebooks.co.uk, Abebooks.de, Abebooks.fr, Abebooks.it and Iberlibro.com) has been an online marketplace for books since 1996, with over 110 million books listed for sale by thousands of independent booksellers from around the world. Amazon.com offers its customers millions of new, refurbished and used items. The terms of the acquisition were not disclosed.