I'm a photographer n00b. I have a lot to learn. That said, I have a Canon Rebel T3i with two lenses. The stock 18-55mm f/3.5-5.6 IS, and a 75-300mm f/4-5.6. I save my images in JPEG. I honestly wasn't aware that there were different file types until recently. I usually just edit a little using photoshop, then upload to Facebook. But recently, since I want to get a little more serious about it, I've been worrying about quality of photos and I remember someone telling me it is better to save in RAW format.. I have no clue what this means. I realize it's a different file type other than JPEG, but beyond that, I haven't a clue. Can I still open the photo in RAW? Upload it to Facebook? Also, what is a good site to use to save photos on besides Facebook, since Facebook is so low quality? I want to start taking photos for local rescues and I really need to learn this stuff. Sometimes my photos seem a little blurryish, and I feel that is more from file type than it is from the actual photo. (Although if they are with my lens without IS, I realize it could be camera shake.) Any advice on this is welcome. Thanks!