1- Gmail integration (2-Way Email Integration)
2- Leads reminder / Lead tracking
3- Customer support / ticket
4- Quick reply with template email
5- Integrate with Olark or similar (via Zappier)
6- Integrate with Gmail (show Profile information)
7- API Access
8- Phonecall Tracking
9- Bulk Email Sending
There is load of CRMs out there, so it would be interesting to open a discussion about what everyone is using and share their opinion.
http://getbase.com
https://www.pipedrive.com
http://close.io/
http://capsulecrm.com/
http://www.salesforce.com/
http://www.desk.com/
https://podio.com/
http://www.streak.com/
https://www.contactually.com
https://highrisehq.com
http://www.collabspot.com/