I am looking for a listing of portals/destinations/keys in the Planes.
I have sought this Rosetta Stone of Planar travel for some time without success.
Hasn't someone even made a partial listing of the portals connecting Sigil, the Prime Material, the Outlands, the whole thing?
I have started to review my Manual of the Planes, Forgotten Realms and Planescape materials for such known portals. Surely someone else has done this.
For example, I see there is a Lissandra the Gateseeker discussed on this site. She makes a list of portals. So, where is the list? I'd like to know where things are as a DM. My players, of course, would have to discover it themselves.
Personally, I like a defined geography for my players to discover. I don't like the capricious/arbitrary approach of gates/portals appearing just where needed to save the players. Nor do I like portals forcing players on to the next adventure at the whim of the DM. I like the players to choose where they will go. I like them to know they can discover things that play fair, that won't disappear when they need them. Also, that they won't be rescued if they take the wrong portal to the wrong place.
The Planes should be dangerous, but fair.
Hon, we're *working* on it... only so many fingers to go around, really.
I'd suggest asking on the forums about known portals from the books (which duh, you just did), the folks here tend to know far far far too much about everything planar. They'll be most able to help you.