Cool Tools - Jackson's List

I've been teaching a course in eBusiness in the MBA program at the University of Phoenix for several years.  The course isn't being offered right now, so the website is gathering dust, so to speak.  I'd like to use this website to share resources that might benefit business developers everywhere. 

I'll start with "Cool Tools".  My aim for the course was to compile a list of free, or close to free, eBusiness tools that were relevant to the course and that I believed would benefit my students both during the class and in their professional lives.  I'm going to broaden that mission to say this "Cool Tools" section is to benefit the readers of this blog and the readers of my book-to-be.

I'll list rather than rate the "cool tools."  I do plan to use a lot of these tools in order to  become a Web 2.0 company, so I will share with you the pros an cons as I see them.

I hope to organize this in a way that you can debate the merits of the "cool tools" I put forward.  I hope you will recommend tools that you feel are "cool" so that other readers might benefit.

Now off to TeraPad tech support to get some thoughts on how to do this!