While a student I was writing for a Linux e-zine. Paid 20$&#x2F;article, at least 700 words(?) a.f.a.i.k. Not a good source of income, but fun and easy to get into, I just emailed the editor that I am attending a conference, and would write few articles for them. Usually sites like these will tell you if they are looking for writers, and whether they are willing to pay for them :)