The site is really coming together nicely. I now have the online contributions up and running. I am using PayPal to handle the contribution transactions on a secure site. Contributions can be made via PayPal or a credit card. Now that the site is about complete, I will be contacting the charities to determine their level of interest.
I have also included a form for those who knew my brother to enter in their contact information and any stories that come to mind. I really hope to hear from some old friends this way.