In addition to basic social networking functions we need:
1. User with Role1 can create form templates in different categories
2. Any user can buy and add forms (based on form templates created by super user) to forms list
3. Any user can buy and add forms to any other user's forms list
4. Any user can search for any form field(s) and find related user
(search page: select form template then select field(s), enter search text/option then click search )
5. Any change in user forms must be reported to friends of user
6. User with Role2 can link their profile to any form of any user they are friends with

Prototype site : http://sim4d.com/formlinker/
With highlights: http://sim4d.com/formlinkerplus/

Prefer:
1. Built with Asp.Net (can be based on Sueetie or from scratch)
Will also consider:
2. Built with PHP (Elgg or other or from scratch)

Requirement is essentially a plugin/mod to any basic social networking system.

Please email vguruv at gmail com with quote.