While Stars without a doubt hosts some of the largest freerolls in online poker, 888poker offers freerolls far more frequently. There are four different types of daily 888poker freerolls, some held multiple times a day.
In poker, a freeroll tournament is a tournament with no entry fee, and a freeroll hand is where a player is guaranteed to at least split the pot with his opponent, with a chance they can win the whole pot if certain final cards are dealt.