GigaOm founder Om Malik cited location and staff as reasons for the acquisition.
ContentNext -- which owns MocoNews, paidContent:UK and ContentSutra, in addition to paidContent -- has offices in New York and Europe.
Staci Kramer will remain the editor of paidContent. The site's executive editor, Ernie Sander, will become executive editor of Giga Omni Media, and the majority of ContentNext's staff will remain with the sites -- bringing the combined GigaOm editorial staff to a total of about 20.
"The combined group will be a powerhouse," Kramer and Sander wrote in a post on paidContent that announced the acquisition.
GigaOm is purchasing ContentNext from Guardian News & Media, which acquired ContentNext in 2008 and will take a minority stake in GigaOm.
Though the 6-year-old GigaOm has 4.5 million monthly unique visitors and is building out a premium subscription model, it was expected to turn a profit for the first time in 2011.
It has accepted $15 million in funding to date.
Image courtesy of iStockphoto, photographeer