If the owner of the images demands it in their licensing information, then the answer is yes.
A lot of owners with creative commons commercial license don’t demand a link back though. It really depends on where you are getting the image from. Be sure to read each licence.
Sometimes if the image is really good, I’ll give them a link back anyway and also contact them.
Hope this helps.
Great read! It’s always interesting to take a peek into the life of Collis.
Promote on social networks and photo site like flickr(google picks it up quickly).
If you have time a patients, make a site that promotes your items and others authors items with your referral link.
Also try and target categories that aren’t saturated (i.e. CD Artwork). Not that you should never make items for those saturated categories, but when you have 1k authors doing the same thing, then you are not likely to sell as well UNLESS you do files as good or better then the competition.
Use plenty (30) of relevant keyword/tags and be creative with your item description, think SEO.
Make your profile page look great and promote your items on it.
Upload regularly to stay relevant, and try not to use titles that everyone uses, be creative. Search graphic river for indie night,then you’ll see what I’m talking about.
That’s all for now, if I can think of anything else, then I’ll comment again.
UJ-pro, you have a wonderful selection of tunes in your portfolio. I enjoyed listening.
Congrats, you have a nice portfolio.