<3How much do they pay?
Have no idea, i'll check it though, there are other sites that do the same thing, try using google to find them.
Edit: from website
Why should I make video reviews?Firstly, you will help the Ciao community to be better informed before deciding to buy a product - and consumers helping each other has been the guiding idea of Ciao since its inception. Secondly, for the next 1000* video reviews published, we will pay a special bonus of £7 for your active contribution (*altogether ciao platforms: DE, UK, FR, NL, ES and IT). This scheme will only apply to the first video reviews for a product in specific product categories which you can consult.
More help on video reviews here:
http://www.ciao.co.uk/faq/video-review-help,46How can I earn money by writing product reviews?Reviews of some products will be awarded a small cash payment every time a member rates them "helpful", "very helpful" or "exceptional". To take advantage of this, write high-quality reviews about these products to ensure that you receive numerous positive ratings by other members.
How are earnings for member ratings calculated?Your earnings for ratings of your reviews by other members are calculated by multiplying the number of ratings per review by the remuneration rate for each of the reviews written. These totals are then added up and your overall earnings calculated once a month. In case of half pennies, the total is rounded up in members’ favour.
There are also other ways to earn money there by inviting friends, requesting payments, or by earning money with Caio advantages.