Application Blocker has the ability to block access to selected application preventing the user from running unauthorized software and wasting time doing things they shouldn't be doing. It also has a built in website blocker that can block or allow access to selected site.
Application Blocker parental control
an intelligent popup blocker program
Free WIFI HotSpot Software and Access Blocker
KH Blocker 2.4
KH Blocker blocks web adverts.
USB Blocker 2.0.3
Control USB storage devices