Here are some useful sites and pages for when you're wanting to plan your build, gear, or just learn more about how to advance in SWL.
Filth DB's create a build. It's ugly as sin, but if you want to create a build whilst not in game, this is your best option.[/:m]
SWL Skills List (google doc). This isn't the easiest thing to read right now, hopefully it'll get some formatting changes soon![/:m]
The Extraordinary Item guide (google doc). If you want to know about an item, this is the place to go look.[/:m]
The reddit guide to elite dungeons. There's lots of useful information in here, but be aware that there is a LOT to get through. It's not light reading if you don't know the dungeons already.[/:m][/list:u]
Do you know of any more useful links? Make a post and we'll add them on to this list.