This was/is my take on the computer: fine as long as in moderation. And we only allow her on educational programs. The two she uses is pbskids.org and starfall.com. She also has a few programs loaded from CD but all educational.
I did a little research on this idea of harmful to the young and this is what I have come up with:
http://www.acei.org/inf.vol.13.4.htm - the article is entitled "Computers and the Very Young"
By Patricia Cantor, Plymouth State College, Plymouth, NH
From this article I think I found the main opponent of computer use for toddlers:
Fool�s gold: A critical look at computers in childhood.
www.allianceforchildhood.netI am still reading the fool's gold but up to this point in the reading I have not been swayed to the other side. Mostly there is a jump to conclusions that children are left to play on the computer for many hours and it takes the place of other activities such as playing outside and reading books.