is there an easy way to 'unlike' or stop being a fan of multiple groups on facebook?

[KristaV.]

Yes there is. At the top right, Click on "Account". From the drop down tab, click on "Edit Friends" It'll redirect you to a different page. Now look on the left, "Find Friends" should be highlighted. Below that are other tabs. One of them says "Pages" Click on that and it will show all of your pages. To delete them, just click on the x's next to them. That's the fastest way I know. I hope this helped.