@danielmcclure on Twitter: "RT @SeanDonahoe: Marketing Tip: Build trust with your mailing list, use the 4:1 principal where you give them 4 info email to 1 sales email."

Last Updated: August 10, 2009

RT @SeanDonahoe: Marketing Tip: Build trust with your mailing list, use the 4:1 principal where you give them 4 info email to 1 sales email.

https://twitter.com/danielmcclure/status/3233342121