as far as i'm concerned, its fine. when it becomes a problem, that means we're gathering enough attention for others to notice, so it will be a good problem to have.

if it's an obvious copyright, and you want to give credit, add the credit to the "caption" field. (part of what i was mentioning above; the META code for images has an ALT, a TITLE, a CAPTION, and DESCRIPTION)

the only "requirement" i'd have is keeping image width to 600pixels wide. doesn't matter how tall. they can be smaller than 600 pixels wide, but never larger (and, honestly, things just look purdier when they're all uniform at 600 - but ill leave that up to you). If an image needs to be larger (like a giant desktop wallpaper or something) then you can upload it and link to it, just not embed it - cuz then it gets all funky on screen.

one of the great parts about wordpress is that you dont' really have to know anything about photoediting - the uploading tools walk you through the whole process. you can resize everything on screen without opening another program

giant picture