Plane Sailing
Astral Admin - Mwahahaha!
The following information gleaned from the information from Tanus, on the wizards thread here: http://forums.gleemax.com/showthread.php?p=15686483
I'd tell you more, but the dratted gleemax forums are closed for "daily maintenance".
Whatever that means.
Rituals are obtained by buying ritual scrolls or ritual books. Ritual scrolls are consumed after one use, books teach the ritual to you permanantly. All rituals seem to have a casting time of at least 10 minutes, require a material component, and require the use of the ritual casting feat (which wizards and clerics get for free at 1st level) Most of the divination spells in 3.5 are now rituals as well as some of the old illusion spells.
I'd tell you more, but the dratted gleemax forums are closed for "daily maintenance".
Whatever that means.