I am in the market for the solar panels and I was wondering if there is a source of knowledge which lets one know what brand of PV modules are better than others.
I don't think you can go very far wrong with any of the "name" brands (Evergreen, BP, Sharp, Mitsubishi, Kyocera, ...).
Make sure they have the UL approval, or your electrical inspector will not permit them.
I like Evergreen because they are made here, and the ribbon pulling process they use results in a panel with less embedded energy.
Attached link is for an interesting site that claims to survey the market and find the cheapest prices.
Here is a link that might be useful: Cheapest PV sources