Here are some sites that I've found with info on micro in general, studying for the AP, tips, tricks, hints, and things that people commonly mess up on. If you've found anything else, post in a comment so others can visit them, too! :) Let the linkfest begin!
Some adventurous teacher/AP grader put together info on some of the most common mistakes that students make on the national exam that cost them points. Yeah, it's 108 slides, but you could hit some of it to get some ideas, and there's a kind of "table of contents" on the left side: mhtml:http://www.ih.k12.oh.us/hsslonim/AP_Economics/PPT/COMMONMISTAKES%20MICRO.mht!COMMONMISTAKESONTHEAPMICROEXAM_files/frame.htm
AMOSweb, searchable economics database: http://www.amosweb.com/cgi-bin/awb_nav.pl?s=gls
Online m/c test for practice: http://www.ih.k12.oh.us/hsslonim/AP_Economics/Micro%20Units/AP%20Microeconomics%20Practice%20Test.doc
And the answers: http://www.ih.k12.oh.us/hsslonim/AP_Economics/MicroMCAnswers.htm
QUIZtastic on AMOSweb (they capitalize stuff weird) - practice quizzes: http://www.amosweb.com/cgi-bin/awb_nav.pl?s=tst
Interactive tutorials: http://hadm.sph.sc.edu/courses/econ/Tutorials.html
College level - online info with quizzes, tutorials, lecture notes, etc - loads of great stuff: http://www.marietta.edu/~delemeeg/econ211/index.html
Online econ textbooks:
The online economics text that I borrow the animated gif files from - they're all here! http://reffonomics.com/textbook/microeconomics
All the graphs you "need" to know, animated gif files, VERY GOOD INFO HERE!
Okay - Basic Concepts: http://www.reffonomics.com/TRB/chapter30/BasicConceptGraphs7.swf
Micro Graphs, Part I (S & D through PComp): http://www.reffonomics.com/TRB/chapter30/micrographs7a.swf
Micro Graphs, Part II (Mon. through income distrib.):
World Price & Tariff Graphs:
Economics at about.com - lots of info, lots of links, could help with application: http://economics.about.com/
McConnell & Brue textbook site - this is the most often used text for AP Econ, and it has all kinds of info online. If you're not understanding something in Mankiw or McEachern, try here. Plus there's outlines, quizzes, etc. http://www.mhhe.com/economics/mcconnell/student/olc/
Book outline notes, but check for micro vs. macro. It's not showing up on this screen, and it's been awhile since I looked at it. Stupid ALC computer. :) http://www.ih.k12.oh.us/hsslonim/AP_Economics/Micro%20Book%20Notes.pdf
Online quiz sites:
These could help with application and general knowledge. Since blogs are constantly changing, I have no specifics on here, but there's a ton of info. Really.
http://gregmankiw.blogspot.com/ <--This is the blog of the guy who wrote our text. :) http://www.oligopolywatch.com/