Game1: D&D 3.5 Homebrew (Standard Greyhawk-type world)
Duration: Usually about 5 hours
Frequency: Only once a month now that I have moved into the city
Where: Long Island, New York
History: Since 1999 (converted to 3.0 then 3.5)
Characters: 16th-level: Rogue, Barbarian/Sor/Dragon Disciple, Cleric, Wizard
Webpage: Well it is very infrequently updated now, but it's
here
Game2: D&D 3.5 Homebrew (Small Greyhawk-type world)
Duration: Usually about 5 hours
Frequency: Once a month, or less, now that I have moved into the city
Where: Long Island, New York
History: Since 2001
Characters: 9th-level: Monk, Fighter, Bard/Rogue, Cleric/Wizard/Mystic Theurge
Game3: D&D 3.5 Ravenloft
Duration: Usually about 4 hours
Frequency: 1.5 times per month
Where: New York, NY
History: About a year old
Characters: Just made 4th level, woo hoo! Priest, Fighter/Rogue, Bard, Fighter
Game4: Living Greyhawk and Legacy of the Green Regent
Duration: 4 hours per slot
Frequency: I play these at cons or gamedays, and seeing as I've hit Winter Fantasy, Ubercon, and ConnCon coming up, that's 1/month or about 4 sessions per month (I don't max out my slots at each con)
Where: Northeast US
So, between the three home games and the cons I have recently found that I enjoy attending, I probably average three gaming sessions per month. This goes up during vacation time (my LI group is all teachers, and we game more during the summer).
This weekend, we played Titan yesterday instead of running the 1999 campaign, because one of the players was at her baby shower.