Yes Constant contact and Sales force are just some of the ways you can deliver the message through email marketing. just bear in mid to comply with the Spam Act and always disclose who the sender is. Thats is why tying this back to a brick and mortor storefront has always yielded the best results. so not just blast emails from a list know who you are mailing to there are list of ways to get targetable lists. But for best results you need to define who your end user is. By defining your target yo can use service from companies like adspinmedia.com