AIDS Service Center Website assessment and recommendations

The AIDS Service Center would like to redo and start over with a brand new website but first we would like a website assessment and recommendation on our old site. We are looking for a seasoned professional to assess our website and give a step by step recommendation on changes as well as sample sites that we could use as examples of great donor sites. We are looking to start using social media (Facebook, Twitter, blog etc.) to market to volunteers, donors and supporters. Please, when creating the assessment include an explaination of the benefits of each of these social media sites. Please respond to this post with: SERVICE CENTER WEB REDO.