Ayaan Hirsi Ali is author of Infidel and Nomad (two highly recommended books) and has a foundation (AHA) that attempts to help all women who are victims of FGM (female genital mutilation) and other abuses condoned by Islam as proscribed by Sharia law. Hirsi Ali co-produced the film Honor Diaries. See her article: Raised on Hatred.
Nonie Darwish is the daughter of a former high ranking officer in the Egyptian army (under Gamal Abdel Nasser) who writes about what she learned, why she left Islam and why she supports Israel. See her article: We Were Brought Up to Hate and We Do.
Kasim Hafeez is a Pakistani-Muslim whose father revered Hitler and who was imbued with hatred of Jews from early on. He read a book and made a trip that changed his life. See his article: Muslim, Zionist and Proud.