Did you ever finished some great logo design, or some great never-seen stationary look, but your client couldn’t imagine it how will look like when it’s printed? Or you make your own example every time, loosing your creative time for that?
Every site has at least one contact form or search. Why not make it more useful with Ajax and Css? With this combination you could have your form look good, and work creatively.
Ajax is a part of web 2.0 websites, and maybe you didn't noticed, but almost all real-time "fancy" actions are made with Ajax.
If you are looking for icons for your project, website, application, blog etc. Or you just want to refresh your old icons, here you have sources of many icons.
Lot's of them doesn't have restrictions, but I recommend that you check the conditions and privacy policy because some of them not permit commercial.