Tokens by Tailz Silver Paws at WyldFurr. Free samples can be found here. Token packs can be purchased from RPGNow.
From RPGMapShare top down fantasy tokens can be found here and here, top down modern tokens can be found here and here, top down Sci-Fi tokens can be found here and here and lastly traditional tokens can be found here.
Want to share your tokens with the community? Then email them here.
From Mapventures, the Complete Token Pack almost 100 tokens for online gaming platforms as Fantasy Grounds and the like. Character portraits for the players with different background colors that help distinguish between players. For the Gamemaster there are alot of common mosters in the same style, but with grey backgrounds. The size of the tokens represent community standards of 50x50 pixels and fit maps created for that standard. There are also smaller emblem tokens included, used to show locations on overland maps or features in a dungeons. The tokens are in PNG file format with a transparent background.
For these tokens you've to thank snikle at Four Ugly Monsters, for arranging the iCon event, Alynnalizza for rendering them and heruca for the finishing touches and for arranging for them to be available to you! Read the thread here to download them.
The community members of Battlegrounds have tokens available here.
Arion Games "publishers of fine Paper Miniatures and other RPG accessories" have ventured into the top down token market. Some free examples can be seen here.
Free membership is required to access the site. Includes Maps, Portraits, Rulesets and Tokens.
A selection of Fantasy tokens and portraits can be found at Asgard North
Fiery Dragon have produced some free counter style tokens for the Dungeons and Dragons 4th Edition adventure Keep on the Shadowfell. They can be found here and here.