iXL

IXL provides comprehensive, standards-aligned math and language arts practice for K–12.

Formed in 1996, iXL peaked in 1999. iXL merged in 2001 with Scient and the combined firm filed for bankruptcy in 2002. Former Scient assets and a portion of the remaining workforce became SBI Group, then Avenue A/Razorfish, then aQuantive, then Microsoft Advertising, then most recently [Publicis Groupe](http://www.crunchbase.com/organization/publicis-groupe) in 2009.