Avatar pictures and copyright

[scientificapproach]

I was just wondering what the situation was regarding copyright and images used as ones avatar (the picture by your screen name)? Are you allowed to use any image you find on the internet? Sorry, Im just abit of a worrier when it comes to little issues like this. Obviously the image would be appropriate and "clean", but I just wondered if its all above board to use images you find from google?


And actually another question while I am asking...is there a way to keep track of threads you've posted in? I sometimes post afew times, then the next day I can't always find all the threads I've writen in, or forget one. I don't like to miss replying to someone (Incidentally sorry If I havent replied to someone somewhere, its most likely for the reasons I just mentioned!)

Cheers SA