Google tips
Don't you just hate it when you are trying to search for a product review, all you get is middle-man shopping sites? Surely, you add the words "review", "compare" to the product name and model number, but all these sites have a "review" section (with 0 reviews in it) and a "compare" section where they compare prices. In fact, online shopping has become so intrusive, you get a link to a shopping site no matter what you are searching for.
The way I deal with it - I add words to the query that normally don't appear on shopping sites but may be in a review. One such word is "sucks". Google for "xbox 360 sucks" and you will get no shopping sites, only reviews. Very unbiased reviews :) If you want a different kind of reviews, search for word "excited".
I think one feature that Google MUST implement, is a filter for shopping sites. It is not in their best interest, since they get a lot of revenue from these links, but hopefully money isn't everything. If it were, there would have been porn sites poping out on every search - an even better source of revenue. But Google implemented a filter for that. Online shopping sites is the next big threat to humanity. Porn is a lesser threat. It takes balls to support a porn site (pun intended). It takes next to nothing to create and support a shopping site clone. These things are multiplying like rabbits on the wave of the powerful promise of secondary income. Well, somebody's secondary income is becoming a primary concern for everyone else. Uninvited soliciting is what it is!
In fact I'd prefer to see porn links instead of these countless and nameless online store clones. Google, take note!