This is a link to a wiki where people can prove that 0.9999999 is equivalent to 1. This qualifies as a wiki because anyone can edit the page (the earliest entry I found was from 2008.) I like this wiki because it shows many ways to prove the two values are equivalent. Some of the proofs are rather simple and can be understood by students in an beginning or intermediate algebra class. I would use this wiki in my teaching by asking students if they agree with the proofs and to come up with their own proofs for the values.
It took me about an hour to find this podcast. I wanted a podcast that addressed topics that are could be understood by a student in a college level math class. These short podcast give a step by step solution for various algebra problems and could be used as a supplemental way of explaining a particular problem. I would use these podcast if there were a few more examples for each topic. For instance, I would like at least 3 podcast for the common denominator problem. I would probably use the podcast as a section review or with a worksheet that had similar examples.
This is survey I created that I would give to my students on the first day of class. The survey tries to figure out how students feel about math courses they have taken.
My students hate writing, especially in math. To create a happy medium I decided to integrate the use of micro-blogging into my classroom to motivate my students to begin to at least use mathematical language in class.