A wonderful article by "weem" describing some very juicy techniques with which to run a game. It's geared towards Dungeon World, but can work in literally every game you play in. Let me give you an example:
"In Dungeon World however, the players play a much larger role in the
crafting of the world around them. Using that same example, as the DM
you may turn to the Elf in the group and ask him a question. It could be
simple… “Have you met the Elves to the North before?” (keep in mind,
the campaign may have just begun!) or it could be a more leading
question (the best kind)… “You were there once, and were even offered a
place among them. Why did you turn it down?”."
Using the principles and suggestions in this humble blog post will make the quality of the games you play in and host significantly better. Some of the more experienced GMs out there will doubtless recognize these techniques as things they've developed over the years, and that's pretty much how you know it's golden.
The full link follows: