I use insight.ly and the free integration with Mailchimp to do just this.
Contacts can originate from a linked Gmail account or a variety of other
sources. Then, depending on the message and target, I can assign tags to
groups and create mailing lists in Mailchimp. Insightly is relatively
cheap and Mailchimp is free up to 2000 contacts.
CEO | ModalMinds Inc. | a GPMIP Member Company
201 Spear Street, Suite 1100
San Francisco, CA 94105
*m | *+1.415.215.8729 *o | *+1.800.957.0543 *f | *+1.415.817.9983
www.modalminds.com | www.gpmip.com
*** CONFIDENTIALITY NOTICE: This electronic mail transmission may contain
privileged and/or confidential information only for use by the intended
recipients. Any use, distribution, copying or disclosure by any person,
other than the intended recipients is strictly prohibited and may be
subject to civil action and/or criminal penalties. If you received this
transmission in error, please notify the sender by reply e-mail or by
telephone and delete the transmission.