Write profitable reviews
If you are a good writer you can also make quite a lot of money writing reviews. There are many websites which are willing to pay for writing reviews. That does not necessarily mean that you would have to praise recommended products, but just write judicial reviews. A good idea is to write a few reviews for such a website and if you find it easy and satisfactory then you can start writing on your own. Usually it is enough to find some software/products manufacturers and offer them your services giving examples of your previous work. Thus you can be more independent and sometimes earn even more. And if you are lucky you might get some free software, or whatever you are reviewing.