Access Control –
Access Control allows parents to filter chats such as AOL, AOL IM, Yahoo, MSN, and ICQ. You can filter websites, applications, games, and even the computer as a whole during certain times of the day!
Net Nanny –
Net Nanny is the only parental control software that includes family-safe filtered search, an Internet monitor, web site filtering,time limits, chat recording, newsgroup blocking, and privacy controls.
For more internet blocking software