I would like to present one project I am starting together with a friend – Flajaxian.com. This is a web site providing FREE, open source tools for AJAX web development.
The first tool you can find there is .NET web control for AJAX style file upload designed for asynchronous file upload of multiple files at the same time, without a page post back and with a progress bar indicating the current upload progress. This control does not require full trust environment. The control can be extended with the addition of server side and client side adapters. Flajaxian FileUploader uses Adobe Flash Player 8 or higher Flash player for the file upload.
For download and documentation, please go to: http://www.codeplex.com/FlajaxianFileUpload
The web site is: http://www.Flajaxian.com
You can see a Help page here: http://www.flajaxian.com/flajaxian.com/FileUploader2.0Help.html
If you want to report a bug or issue you can do it here: http://www.codeplex.com/FlajaxianFileUpload/WorkItem/List.aspx
Please, for general questions use Codeplex page instead of my blog: http://www.codeplex.com/FlajaxianFileUpload/Thread/List.aspx