====== best web filtering solution ======
From: https://community.spiceworks.com/topic/336235-best-web-filtering-solution
My three favorites listed in order of preference:
OpenDNS - http://www.OpenDNS.com
Barracuda Web Filter - http://www.barracuda.com
Untangle - http://www.untangle.com
From: https://community.spiceworks.com/topic/832661-need-something-for-content-filtering
Depending on needs, you can also do DNS level filtering - it's not perfect but it does in a pinch,
and it's easy to set up. Dyn has a product called Internet Guide that's $20 a year (even for businesses)
that does 98% of what OpenDNS did before they went Umbrella.
From: https://community.spiceworks.com/topic/1655287-web-content-filtering
From: https://community.spiceworks.com/topic/884423-open-dns-recommended-alternative
From: http://www.dnsredirector.com/compare/
From: http://dyn.com/products/