I unfortunately have to second your perception of decreasing quality of google results. Just yesterday I needed a SIP VOIP provider, but almost all the results were SPAM or sites looking very shoddy. I chose the one that seemed to be the least untruthful of them (fonosip.com) but it appears that I was ripped off. I bought credits, registered my SIP device in their network, but cannot make any calls. They do not reply to my e-mails and their twitter account (@fonosip) seems to be pure automated spams to farm links... Guess I just lost 15 USDs but losing faith in Google was much worse than that.