I talked about this topic in this post: Do you credit your art work the right way?
Crediting your images is very important but it is also not the only thing you have to do when you post your images on line, tagging your pictures is extremely IMPORTANT !!
You will be lost in cyberspace if you do not tag your images.
Some people may think this is too hard or they may not want to do the extra job of writing tags for their images, but I am telling you, if you do not do it then I do not see the point in posting your images without tags. Tags help you to make your pictures visible to others when they do search in the Internet.
Tagging an image is simple, tags are words that will describe what is in your picture; for example:
©2011 Lorena Angulo
Photo: Speedy Peacock
Every word in this list will make my image visible when someone writes a "key" word in any search page.
I hope you will take the extra time when you see a space that says "tags" or "labels" to write tags in your images the next time you post a picture, this will help you and help others find your work.
Happy Tagging !!!!
Keep Playing, keep creating !
p.s. I almost forgot !! I need to tag my blog post too ! ;o)