Hindawi has sold 12 open access journals to Springer Science+Business Media.
Here's an excerpt from the press release:
In a move that will expand its open access offering, Springer Science+Business Media (Springer) has acquired twelve journals from Hindawi Publishing Corporation in an asset deal. The journals include seven titles published in cooperation with the European Association for Signal Processing, four mathematics journals and one in medicine. . . .
The takeover of the twelve journals is scheduled for the end of March 2011. Hindawi will continue to publish approximately 200 other open access journals.