RE: Best blocks for 6 mo+? (can you tell I'm already X-mas shopping?)
I really like the Parents Alphablock Sorter. There are 8 foam blocks covered with cloth. Six of the blocks have shaped inserts (2 squares, 2 circles and 2 triangles; 3 of the inserts are teethers and 3 are rattles). The images on the blocks assist with counting and learning ABCs. The blocks are about 3"x3" and are machine washable. They come in a plastic carrying case. I bought mine at BRU but have since seen them for less at Target. I can't find a link to it, though.
Mommy to Justin (13 years) & Ashlyn (8 years)