Watch the Duane Allman online guitar lesson by Jeff McErlain from Kings of Tone
Slide guitar is a very different technique than standard guitar playing so don't be discouraged if you are new to it and it doesn't sound so good. It requires a lot of time, so be prepared to get a lot of buzzes, rattles, fret noise, and be out of tune a lot. The pay off is definitely worth it. Slide is a great element to add to your vocabulary especially, it can really change up the sound during the evening. Plus it just sounds great.