Sponsored review is one of the popular way to earn through blogs. There are number of marketplaces which gives the opportunity to write sponsored posts on varied range of topics. The adoption of this idea depends on the willingness to get paid for writing blog post (related to specific products and websites). If the blog has a big fan list one can contact the advertiser directly to cut down the commissions of middleman. Following are the list of popular networks offering sponsored reviews and paid blogs. Opt any of these and start earning. Advertisers can also join these program for wide publicity of their products or website.