I would like to know a good site to make avatars or pictures smaller?

Here is a free on line photo resizer i have used it and found it easy to use and offering a good free service.
no software download needed.
http://webresizer.com

http://www.shrinkpictures.com

http://avatarkey.net/resize_avatar.asp

Both of the above will do the trick as well.

I use this when I wanna do quick online edits:

http://pixenate.com/

I used pixenate last year before it was down.
Now Pixenate is re-designed doing better than last year.
I am happy that

Basically I do make my own avatars. It is not that hard. I do in Photoshop and make it good.