CRM and Marketing Automation
Zoho CRM - very affordable, online CRM
SugarCRM - popular, open source CRM
vTiger - smaller open source CRM
freeCRM.com - simple, free CRM (with Ads)
WeMeUs - online relationship mgt, multiple contact sources
ACT by Sage - inexpensive, popular CRM software
High Rise - inexpensive CRM for small business
PinPointTools - Outlook/ACT drip marketing add-on
Eloqua - popular enterprise-class marketing automation
Marketo - lead management and marketing automation
Pardot - another good marketing automation tool
LeadMaster - great CRM and lead management tool for SMBs