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Code:
spywareinfo.com
will be blocked in the future. It now does advertise a lot of "scareware"

Code:
ask.com
will not be blocked by Spybot S&D, in the past it was known as askjeeves and was at times not so legit and was therefore blocked in many hosts files. Currently "ask" is about on the same legit level as google, yahoo and msn, if you decide to block one of these you should block all.

with
Code:
experts-exchange.com
we have the problem with every social network, it can always be misused to gather user data. It is very hard to prove that the owners of the site are using it for phishing or other malicious activities, therefore the site will not be blocked until such activities can be proved.