Fantastic article about various drywall anchors. Gives weights, drill bit sizes, how to remove - all the things they SHOULD tell you with your new shelf kit, but don't. I'm saving it as a pdf file in my e-reader.
Come find out how to remove dry wall anchors easily, without tearing up the drywall. It is so much easier than you think!
Information on what hardware to use for hanging anything on different types of surfaces at http://www.dannylipford.com/how-to-hang-anything-on-anything/
How to Install Floating Shelves On a Tile Wall Using Wall Anchors
Using Wall Anchors Including Molly and Toggle Bolts, Plastic Anchors, and Expansion Anchors
Image titled Remove Wall Anchors Step 1
Use GOOD Wall Anchors | 31 Days of Handy Home Fixes
Oyster Shell Anchor/Nautical Wall Anchor/Oyster Art~ by My Honeypickles
DIY: How to Build Inexpensive Shelves - using MDF, wall anchors and lots of primer and paint, 7 shelves were added to this walk-in closet for $20 - Bower Power Blog
wall anchor photo arrangement... i would do this with my initials CMA