The pollution of search results with google paid ads is part of this. Now there are 2-3 text ads followed by 5 product ads in a one box THEN search results. So everyone that was 1-3 is really now 3-6. Google is one more change away from being all paid placements on the first page. Do no evil?
Something started about 4-15 and has continued to roll through. Last weekend there was another significant change. We are back to seeing this:
Search for product xyz
Results 1-2 are paid ads
Results 2-7 are horizontal product images... Product ads. No policing is done and half the time the prices are misrepresented
First organic is the manufacturer
Second and third organic are somereseller.manufacturer.c om/product xyz
Fourth organic is an independent reseller with their own website
What google is back to doing is taking the manufacturers free mirror catalog pages for tiny resellers with the same text, images, layout in a subdomain and ranking those as quality sites. Lol.