In the last year, nearly 500 Ajax frameworks have been created. Picking the proper framework is extremely important, because it will determine the success of the features, maintenance, and development time for your project. There are a number of questions you will want to ask yourself when it comes to choosing the proper framework. If you are looking for a list of the available frameworks, some of the best places to start would be Wikipedia, as well as the Ajax Projects. As far as questions are concerned, will the server be independent? Frameworks which use independent servers will help out with mashing up server systems.