In photoshop you can save your picture in many different formats/file types. I've never really known much about the different choices but I've been told jpeg is for smaller file sizes so I normally use that format.
Which formats of the choices are standard for most uses? (ie uploadable onto must websites, facebook..)
I'd like to know what is a good format for possibly enhancing images, such as webcam pictures that are low res, as well as common useful formats so in the future I'll know what are the best choices depending on what i want.