In the last year the VP of ALumni Affairs in my chapter and I have increased alumni participation by four fold. We send out an Alumni newsletter about 4-5 times a year. We have a Founder's Day Golf Tournament which is solely for alumni. We also have an extensive alumni directory spreadsheet. Its kept up to date through a form on a web page, the alumni simply fill out the data and select whether its a new entry or an update and we get a formatted email right away. If you want to see it or copy the html the go here
http://www.ncsu.edu/stud_orgs/frat_s...au/alumni.html email me at msbrown2@unity.ncsu.edu if you have any questions.