Screencast: Hover Content in Rails and Prototype from Erik Andrejko on Vimeo.

It is often a good idea to show content when the user hovers the mouse above a link or an element in a page. This technique has been abused by some, but when used correctly it can enhance the user's experience. This is particularly the case when you have a lot of information that may be relevant to the user's interests but is too much to display all at once.

There are a lot of cases where pagination is the wrong choice to present a long list of items. This screencast will show you how to unobtrusively enhance a paginated list of items with an endless page. I first learned of the endless page trick from Aza Raskin of Humanized. His talk, Don't Make me Click, is well worth watching.

How to Create a File Upload Progress Bar in Rails, Passenger, Prototype and Low Pro from Erik Andrejko on Vimeo.

An upload progress bar is one of the best ways to improve the usability of file uploads in your application. This screencast will show how to create a file upload progress bar using Rails, Passenger, Low Pro and the upload progress bar apache module.