I like the page and have some input:

  * Showing $$/hr on the first page (summary page) is going to lead a race to the bottom. Most people are fixated on $$ and will immediately gravitate towards the lowest price possible. Not good for anyone

  * On the first page focus on skills, availability, communication methods, and time zone.  This should be just enough to filter down to a select number of people who may be a fit.

  * Provide a “get to know me” page where each person can include more about details about their work history and expand on bullet 2 above.

 * For availability, allow people to add buckets of time like per project, ad hoc, xxx time per week, etc

Remember, in the end, people have work that needs to be done, and finding the right mix of skills, availability, communication, and cost is difficult. Focus on solving the “mix” problem and you should have a great platform!