We had 60 voters in our last poll, which asked, "What is likeliest to get your children interested in a book?" And the results:

They find it on their own and decide to try it: 25 (41.7%)
Their friends are reading it: 24 (40%)
You recommend it: 4 (6.7%)
The school assigns or recommends it: 4 (6.7%)
Other: 3 (5%)

We have a new poll up on the left now, so please go vote! The first four responses listed are meant to be from your kids' point of view -- we couldn't put quote marks around them.