Kakaku.com is an internet media company located Tokyo Japan. It runs variety of user generated web sites including;

kakaku.com (price comparison and product review)

tabelog.com (restaurant review)

4travel.jp (travel experience sharing)

eiga.com (movie)

photohito.com (photo sharing)

yoyaq.com (last minute discounted hotel reservation)

smaity.com (rent)

mansion-db.com (new condo)

Kakaku group has over 50 million unique visitor per month in total.