Everything I enter into my computer goes into Bookmark. This includes my email, Google searches, everything. How can I stop this from happening?

Sounds like you have a browser set to auto launch Turn off auto launce in Mac OS <10.6 Option click the launched web browser in the Doc and uncehck Launch at log in, for OS 10.6 control click the browser icon in the dock and under options uncheck launch at log in. Sounds like you also need to reset your home page in the browser.