There have been some websites that were lifesavers for me when I was thrown into children's ministry and its only fair that I share them with you. Many thanks go to the creaters and producers of these lifesaving websites!

http://www.daniellesplace.com/ - lots of art and craft ideas

http://www.christianitytoday.com/childrensministry/ - articles, tips and ideas about every facet of running a children's program

http://www.kidssundayschool.com/ - tons of practicle ideas split into pre-school and school, so you're sure to find something at the right age level

http://www.beyondthisplanet.org/ - a site I've just been told about. I haven't used it much but been told its really good!

http://www.biblegateway.com/ - Has many different versions of the Bible; I frequently looked up the many different versions of a verse to find the simplest for the children