From PlayOnline.com:

15 new seasonal cards have been released in the "Greeting Card Download" section under "Extras" on the PlayOnline viewer.

The theme for the cards this time around is the FINAL FANTASY XI special event "Sunbreeze Festival." With hot designs like the bright fireworks lighting up the skies of the three nations, these special cards will get you into the summer festival mood.

These 15 new greeting cards are offered for limited time only. The offer ends on Aug. 18, so please take this opportunity and enjoy these special seasonal cards!

* For details and information such as how to download the cards, please be sure to check out "Greeting Card Download" in the Extras section.