While researching a couple of email marketing options for an organization I was working with recently, I came upon a new report produced by the nonprofit consulting firm Groundwire (formerly ONE/Northwest) that did an excellent job breaking down ten email service providers.
These ten providers represent the top options for nonprofits when considering an email communication service. The report breaks down each provider by features, integration with other platforms (such as Salesforce), and pricing. After you have mapped out your email marketing requirements (email volume, frequency, budget, integration needs, scheduled delivery, etc.) the report makes it wicked easy to narrow down your options. Some of the service providers profiled in the report are MailChimp, VerticalResponse, and CampaignMonitor.
The full report can be downloaded for free at: http://groundwire.org/support/articles/email-service-provider-comparison-report-2010