If you are a reviewer or critic you are likely to find work writing reviews of products and services on the Internet. This is quite a common offering however dont expect to be reviewing anything ordinary. Usually the types of things that are offered up for review are insurance sites, credit products, Clickbank products and porn sites. Also you might find that this pays really low, unless you can add search engine content optimization to your skill set.
Most actual product descriptions that are done for the Internet are done in house. The same goes for catalogues. Yet the first thing that most writing gurus on the net will tell you is that there is tons of catalogue description work available on the net. In fact this is the type of work that you see the least of for freelancers on the auction sites nowadays the SEO blog or article is replacing this type of Joe work.
Reviewing products on the Internet can pay even lower than other types of writing. Once again this only pays off if you can write quickly and do large amounts of reviews in bulk and if you know how to search engine optimize a product description. Of course it can also depend on the length of review...