So, you are developing that next big site using all the big words like Ajax and comet. But you aint a big UI specialist and you like how other sites make Ajax based request replies look so cool with their images and stuff. Well you can do the same thing too with Ajax Loadign Gif Generator.
Step 1: Open the website.
Step 2: Select the type of gif that you would want to create.
Step 3: pick a foreground and a background color( there is a palette to help you)
Step 4: Select whether you want the GIF to have a transparent background
Step 5 : Click on Generate.
and done !!!!
you have wonderful gifs like these 
Estimated Time : under 20 seconds 
another Ajax loading generator on http://www.webscriptlab.com, lets you generate loading icons on demand for your applications.
Pretty cool stuff!