Another 400 free Credo Reference accounts have been made available for Wikipedians, kindly donated by the company and arranged by Erik Möller of the Wikimedia Foundation. We've drawn up some eligibility criteria to direct the accounts to content contributors, and after that it's first come, first served. The list will open on Wednesday, March 23 at 22:00 UTC, and will remain open for seven days. See http://en.wikipedia.org/wiki/Wikipedia:CREDO
Feel free to add your name even if you're lower on the list than the 400th, in case people ahead of you aren't eligible.
Good luck!