Wow! Bending is a wide topic that I will struggle trying to summarise it to a forum post. Hmm...Very simply, bending is the art of bending a string(any string) either up or down on the fretboard depending on the desired tone you want to achieve. Blues player, any player, uses string bending to a large extend. It is easily the most frequently used techniques for all guitarists!

However, producing an accurate and "correct" tone in string bending requires practice and lots of practice. I'm in the midst of writing a post on my blog on the art of string bending suited for people just like you! Keep going to www.guitareffectssecrets.andy-ng.com for free online lessons!