A problem with blogging these days is that too many bloggers use the same sources (at least in popular domains they do). So what can you do to be unique? Aaron Wall has a very interesting list of 11 ways to find unique content sources.

Among these, most important I find:

Write from your own experience. Of course, this works only if you have that experience.

Encourage reader feedback by making them ask you question (an ASK ME button could be very useful) and write posts where you answer their questions.

Find questions poorly answered and explain it to your readers. You can do that by searching forums or popular blogs’ comments and see what question are not completely answered and add some valuable information.

Myth busting. Find misconceptions in your domain and sort things out by explaining how things really are.

Interview experts. You can contact experts in your domain and ask them to make a short interview with you. Usually people will agree to do that. And this will add value to your blog, plus will help you build up your reputation. [Read more]