As the controversy grew over Rush Limbaugh's latest incendiary comments -- he called law student and birth control advocate Sandra Fluke a "slut"...his show's advertisers began to flee in droves. The Associated Press reported on Sunday that seven companies have backed away from the show. Mortgage lender Quicken Loans, mattress retailers Sleep Train and Sleep Number, online data backup service provider Carbonite, software maker Citrix Systems Inc., online legal document services company LegalZoom and flower company ProFlowers all pulled ads in reaction to Limbaugh's comments...Limbaugh apologized...