What Obama can teach you about list making

Although President Obama's social media strategy is commonly regarded as the most successful component in his 2008 election digital marketing campaign, evidence shows it was actually email and list building which was the most impactful. Obama's own social media site had 2 million followers but his email list had over 13 million. Most importantly, this email list had been intelligently segmented to reflect the different types of audiences. For example, Obama's email team knew who to ask for $10 donations and who to ask for $1000 donations. By segmenting emails and donation requests to right audiences, Obama's ensured that it was sending the most relevant messages. Evidence has shown that people do not mind receiving multiple emails as long as they are deemed relevant. By segmenting properly, you can email more and and increase your chances for success.

http://www.finn.be/blogs/what-obama-can-teach-you-about-list-building