There are several services that help you search the web for goods deals. Gazaro does the same but with a difference. Gazaro analyzes the price history of a product and tells you whether the price a site offers is really a good deal based on past prices.

For example, a flat-screen TV for $1200 may be the best deal you can get now, but it’s not a great deal if the same TV cost $1000 a month ago. Armed with that information, you might decide to wait for the price to drop again.

Gazaro rates deals on a 1-10 scale, with a score of 8 or 9 meaning buy it now.