As a beginner I wanted to check out Poker Stars for playing free poker online.
Poker Stars allow beginners a chance to play texas hold em online for free to improve not only your play, but also get familiar with the software that poker stars uses.
Follow up:
First from the Poker Stars lobby I chose tourney and then free roll. I found a tournament starting a time that suited me and promptly registered.
Over 7.500 players were in for the same event. Time came for the online poker tournament to start a new window opened with my poker table and other players seated. Sudgie, our resident poker guru had popped round so he hung around to watch me play.

I started with 1500 in chips and lasted for about 25 minutes ! finishing in 4930th place so certainly could have been worse. Certainly some of the people I was up against at my table could play, but the experience was fun.

I suggest anyone wanting to try playing online poker, to try the free rolls at poker stars, just go and download the software , enter a user name and your are up and running.