I just stumbled into the greatest concept ever made here on deviantART - the dA Linking System. You can read a lot about it at the profile *dALinkSystem, but for short:

When you upload a new deviation, you search on dA for similar pictures. When you find one (or more) that you like, go there and copy the thumb-code for it. In your artist's comment field, you then paste this thumb, along with a text a la "If you liked my deviation, you should check out this one". Then you'll of course let the person who's deviation you've linked to know about it. This person now gets more exposure that he/she would have gotten without the Linking - and hope is that he/she will also get into the Linking bussines. Result: Everyone gets more exposure of a good kind (you Link to images similar to the deviation you Linked from, so people will probably like the art of the other artist as well).

I can only strongly encourage everyone to use this system