This thread is not to discuss various providers; open up a new thread to discuss them in detail if you need. It's here to provide a consoldiated place to link to pieces, parts, printers, software, manufacturers, etc. - all those bits and pieces you need to actually create the physical game and get it out the door.
http://www.litko.net/ makes accessories for games, like counters, tokens, markers, etc
http://www.craftparts.com/ craft supplies, but can get bulk orders of wooden pieces for markers, tokens, counters, etc
http://www.profantasy.com/products/cc3.asp Campaign Cartographer 3 for making maps
http://www.hexographer.com/ Hexographer (map software)
an excellent source of online icon art for a variety of games
http://game-icons.net/
h/t the guys in the TimeTripper thread for pointing this one out.
Also, online hex paper, and other stuff, over at
http://incompetech.com/graphpaper/hexagonal/ and
http://www.printfreegraphpaper.com/
Rinaldi Art has stock tank images for sale
http://www.rinaldistudiopress.com
http://boardgamegeek.com/thread/1271573/those-interested-making-your-prototype-here-list-s
counter graphics
https://www.dafont.com/fr/tanks-ww2.font