Overpower3d.com is currently running a 2 week promotion and giving away 5 free Gem Cards for Guild Wars 2, each card being worth 2000 gems in-game or $25.
To enter you simply have to Like their Facebook page and attach an image of you GW2 character. Two winners will be randomly selected next Friday June 7th, then 3 more winnners on June 14th.
For full giveaway rule head here. http://overpower3d.com/Giveaways/guild-wars-2-gem-card-giveaway/
Good luck to everyone that enters.