vtiger :: View Entry – vtiger – web2.0 CRM:
Here is a small list of CRM products/services labeled as Web 2.0 CRM:

CRM 2.0
24sevenoffice – Web-based crm & erp. http://www.24sevenoffice.com/
Fixia – Social helpdesk. http://www.fixya.com/
Helpspot – Wen nased help desk software. http://www.userscape.com/
Pushcrm – Web-based crm. http://pushcrm.com/
Simpleticket – Helpdesk solution. http://www.simpleticket.net/
Userscape – Web based help desk portal. http://www.userscape.com/
Zohocrm – Web-based crm. http://www.zohocrm.com/

The complete list of Web 2.0 early adopters:

http://kutschi.info/web20applicationslist.html