Bing found the following results
Play Backgammon | 100% Free Online Game | FreeGames.org
247 Backgammon
Backgammon | Play it online - CardGames.io
Backgammon online — Play backgammon for free
bgammon.org - Free Online Backgammon
PlayOK - Play Backgammon Online Free
Play Backgammon Online
Backgammon Galaxy - Play Online for Free
Backgammon - Wikipedia
How to Play Backgammon (with Pictures) - wikiHow