I wanted to whitelist all the primary domains that I frequently visit, and also the domains included by the primary ones (including advertising, because I feel guilty to adblock; I don't want to freeload on sites that cost time and money). I care little about advertisers "tracking" me, but I care about security (in the sense of not allowing viruses and trojans) even though I already use Ubuntu+Firefox, and disabled Flash and Java.
To see which domains were safe, I used NoScript Shift-click feature. That feature, as you surely know, analyses the domain with 5 web utilities.
The problem is that one of those utilities - Google Safe Browsing Diagnostic - seems to flag every other domain, including domains that all the other utilities found secure.
Even important domains like gmodules.com get flagged:
http://www.google.com/safebrowsing/diagnostic?site=gmodules.com (EDITED to fix link according to Tom T suggestion below)
The last time Google visited this site was on 2012-09-24, and the last time suspicious content was found on this site was on 2012-09-23.
Malicious software includes 6 trojan(s).
Over the past 90 days, gmodules.com appeared to function as an intermediary for the infection of 8 site(s) including kakoslykos7.blogspot.com/, misterika.blogspot.com/, libdes.blogspot.com/.
Notice, too, that despite the above problems the gmodules.com domain is not listed as suspicius
This site is not currently listed as suspicious.
And in fact, it says
Has this site hosted malware?
No, this site has not hosted malicious software over the past 90 days.
Which seems contradictory. And neither McAfee SiteAdvisor nor WOT found problems with gmodules.com.
What am I to do?
Thank you for your attention.
EDIT: after waiting for the past 8 days, I have pretty much decided to exclude from the whitelist the sites accused by Google of being of dubious security, even if they could be false positives.