If you are going develop a serious lead generation campaign, you are going to eventually need to step up and get yourself an email marketing service. These services do the heavy lifting of list management and government email compliance as long as you stick to the Double Opt-in function most of these services offer.
I currently use AWeber mostly, along with MailChimp. AWeber has a monthly carrying cost while MailChimp has a free service that should satisfy your initial needs. I haven’t used the other services but you can check them out for yourself to see exactly which makes the most sense for your business.
Aweber.com– From the site: Located in Huntingdon Valley, PA we develop and manage opt-in email marketing tools. A growing 80,000+ international customer base access our website 24/7 to manage and send their newsletters to recipients who have specifically opted in on their website to receive that information.
MailChimp.com– From the site: MailChimp makes it easy to design and send beautiful emails, manage your subscribers and track your campaign’s performance. We take fancy–schmancy tools like segmentation, a/b testing and ROI tracking, and we turn them into something anyone can use.
iContact.com– From the site: iContact’s proven and industry-leading email marketing software empowers businesses to engage, educate and retain customers, targeted prospects and website visitors – and ultimately maximize ROI. With headquarters in Raleigh-Durham, NC, since 2003, iContact currently provides email marketing software to over 600,000 users across the globe.
ConstantContact.com– From the site: Constant Contact®, Inc. helps small businesses, associations, and nonprofits connect with their customers, clients, and members. Launched in 1998, Constant Contact champions the needs of small organizations and provides them with an easy and affordable way to build successful, lasting customer relationships.