If you want to practise this grammar point and have some fun meanwhile, why don't you play battleships here? This is another online game from ESL Fun Grammar Games and this other one from englishmedialab.
For exercises, visit ego4u.
Finally you can do some of these tests, if you like: 1, 2, 3, 4.
These three tutorials might also help: 1 -2 -3.
This video shows you parts of songs where the infinitive and gerund are used ;-)