I've recently used TES Lesson Plans. These free teaching resources been uploaded by teachers. I then differentiate to match the needs of my class. There's also a US version again with free lesson plans on Share My Lesson Hope this helps : )

Check out Bazteaches latest blog.  Also well worth a look are Busy Teacher, English Club and the British Council website.  I also use a great site called One Stop English for which I pay about €50/year, but has an amazing range of material.

There is a group here on the site - that will me a merge of: http://www.onlinetefl.com/tefl-chalkboard/groups/21-TEFL-Lesson-Plans & http://www.onlinetefl.com/tefl-chalkboard/groups/20-TEFL-Activities-Games...I have found these to help when planning my own.