You can get paid to write reviews of different products,websites,books,music. Few sites pay to write reviews for them. Some of them pay per review submission,some share revenue that your review generates.All you’ll have to do is to write some short,original,appealing reviews.
Epinions :

This is a well known consumer review platform.You get credited through ‘Income Share’ program.That means you get paid when your review helps users to make a decision.Epinions takes a share of the income that your review generates.Your portion is deposited into your monthly account.The only problem is if you are an international member,you need $100 in the account to cash out.

Ciao :

This site is very popular in Europe.You write a review in this site,every time another member read and rate it,you get paid.You can also take part to their paid surveys.You can earn referring your friends.You get paid 50% of their earnings for the first six months of their joining.

Dooyoo :

This is another site that pays to write reviews.For every review you get 500 dooyooMiles. Every time another member reads your review you get 15 dooyooMiles.1000 dooyooMile equals to £1.

Shared reviews Not available any more)

This is basically a social network of consumers.In this site you can create your profile and make friends and join groups.You get paid on the basis of votes your reviews getting .You can  also earn for casting your vote,if you vote a review that generates revenue you get a portion of that revenue.

Review stream :

This site pays to write review.They pay on current rate basis.On an average it is $2 per review.But it can be more or less.Also you get paid for every vote your review is getting.

Shvoong :

Get paid to write a summary or a review of a book,article,website.They pay 10% of the total revenue.They also have an referral program.You can get paid a percentage of you referral’s earnings.

Reviewparty :

In this site you can write reviews of  books, music and movies and television programs.This is an AdSense revenue sharing site.You need an AdSense ID.Ads will be shown on 50-50 basis.You can also earn from  Amazon Associates Programs.

Reviewsarena :

In this site you can write any review that you decide.You can put your clickbank affiliate link in the review.Your affiliate link will be online for 30 days then it will be replaced with the reviewsarena’s affiliate link.

EXPOTV :

In this site you can get paid for video reviews.Rewards depend on the type of the assignments.

RateItAll : This is a Google AdSense revenue sharing site.Here you can write a review on anything that interests you.You get 50% of the Google AdSense revenue.