Many do not have 501c3 status. Information on how to fill out 501c3 paperwork is also available there. We are looking into updating the information. We are looking at the possibility of creating a page with links to the vendor pages. Also, using the VDB, member groups should contact the vendors and ask to be put on the vendor's PR list.
Some vendors continually send e-mail publishing their specials for individuals and user groups.
There is one in the works.