Quoted from Whysnow:lots of old school thinkers in here...
companies should never block the internet from SFW sites like Pinside. Productivity is what matters and retaining good workers by allowing and even encouraging downtime to surf is smart business.
+1
There are ways to deal with errant individuals.
To give an analogy, where I work there used to be 3 days of full pay sick leave a year (on top of statutory sick pay). At some point they decided that some, maybe even just one or two people were treating it as 3 extra days holiday a year. Solution? Cancel it completely for everyone. If you're off sick you don't get paid or you have to burn one of your holiday days...
Problem solved right? Except now people who are genuinely ill feel compelled to force themselves to come in during their most contagious days because they can't afford not to, thus infecting others. In many cases people end up having to call in sick because they're just too ill to come in or to drive etc, not get paid and feel upset and disenfranchised with the company because of it. All because it couldn't be dealt with on an individual basis. So this policy impacts more people, and leads to more being off (except now those people are probably looking for other jobs every time they're reminded that they're not being paid), not less.