posting updates to multiple social networks

Ping.fm allows to post to compatible services;facebook,flickr,myspace,photobucket and twitter

web filters

Avg comes with a kind of web filter in conjuction with yahoo!
Search Amazon.com for Avg
barracuda,suitable for businesses
Barracuda Networks Barracuda Web Filter 210 with 1yr Energize Updates
cosmi
Cosmi Perfect Web Protection With Content Filter Platinum











family cyberalert
Family Cyber Alert (Version 3.96): Parental Control & Keylogger & Internet Monitoring & Computer Monitoring & PC Monitoring & Chat Monitoring & Online Monitoring & Web Filter & Keystroke Logger & Key Logger & Prevent Cyber Bulleying. THIS IS FROM THE MAKER OF THE SOFTWARE and the only one that comes with PREMIUM TECHNICAL SUPPORT.
finjan secure browsing
colour-coding system
website summary or detailed countdown.

siteadvisor by MCAFEE
offers a colour-coded  ranking system
Search Amazon.com for siteadvisor
Search Amazon.com for MCAFEE
web of trust
colour coded icons,red for bad,amber caution and green ok.
also child safety category.
checks results against (human assessed)community-ranked database.
Search Amazon.com for web filters

Divx products

DIVX plus
video software includes web player and converter

Feed readers and reading programmes

feedburner

feednotifier.com
alerts you of updates to your favorite feeds