In a message from the Angus Mailing List, a gentleman posted that the Glasgow Herald made reference that Scotlands People is giving away 20 free, I repeat free, credits in celebration of Homecoming Scotland 2009.
Log into scotlandspeople.gov.uk as usual and go to the section "need more" in the upper right hand corner. Scroll down past the normal "select number of units" box and in the voucher box type in: heraldmag
You must register by 1:00 p.m. (Scotland time) on Saturday, June 27th, and the credits are valid for 90 days.
This is not a scam, I just did it and got an extra 20 free credits.