From author's site:

Naomi is an advanced internet filtering program, easy to use and totally free, intended for families, and kids in particular.

Naomi is able to constantly monitor all internet connections, protecting children from inappropriate online material - such as obscene or violent contents; pornography, pedophilia and erotism in the form of images or texts; sites that popularize drugs; gambling games; terrorism; hate propaganda; occultism; sects; blasphemy, etc.

Naomi does not rely on a simple list of banned sites; instead, it examines in real-time all the data being transmitted and received through any internet application - such as web browers, chat programs, news readers, etc.

The filtering technology employed in Naomi features:

From author's site:

K9 is an email filtering application that works in conjunction with your regular POP3 email program and automatically classifies incoming emails as spam (junk email) or non-spam without the need for maintaining dozens of rules or constant updates to be downloaded. It uses intelligent statistical analysis that can result in extremely high accuracy over time.

K9 learns from its mistakes and becomes better and better at being able to identify spam. More importantly it learns to recognize what you consider to be spam.

K9 is for standard POP3 email accounts only. It does not directly support Hotmail, AOL or any other kind of webmail type systems, nor does it support SSL or secure authentication as used by MSN.

From author's site:

Spam Nullifier (FREE) keeps junk mails out of your inbox, stops spam before it gets to you - Never filters e-mail from friends and family - and blocks offensive words and pictures. It is a simple, yet powerful utility to make your daily life more productive.

Designed to remove spam, viruses and unwanted attachments from your e-mail before they get to your computer. MailWasher connects to your e-mail server(s) then retrieves and displays information about the e-mails waiting for you. Aided by MailWasher's inbuilt processing tools, you can then decide what to do with each individual e-mail - download, delete, or bounce it back to the sender.

MailWasher deletes unwanted messages at the server, without downloading them - or it can bounce an e-mail back to the sender so that it looks as though your address is not valid, giving the appearance your email address doesn't exist.

Spamihilator works between your E-Mail client and the Internet and examines every incoming E-Mail. Useless spam mails (Junk) will be filtered out. This process runs completely in the background.

The new Learning Filter (Bayesian Filter) uses the rules of Thomas Bayes (English mathematician, 18th century) and calculates a certain Spam-Probability for every E-Mail. You can train this filter! So it will know your messages even better than you. Hence the recognition rate will continuously increase.

Spamihilator screenshotIn addition Spamihilator uses a Word-Filter, that searches messages for known keywords.

Of course, Spamihilator supports Plugins. These useful additional filters protect your system against annoying spam mails.

Glubble Trusted Surfing for children under 12 years of age enables families to be sure they only see the best of the web they choose to allow.

Glubble Altered Search makes Google and Yahoo show results from childrens trusted Glubbleworld instead of the world wide web.

Child friendly look and feel with interfaces for pre-reading and reading age young children.

iCRAplus is more than just another internet filter. It is the foundation that allows you to select and combine several filters to produce the precise solution you're looking for.

Naturally ICRAplus fully supports ICRA's self-labeling system and will effectively allow or block access to labeled sites according to your settings. However, it can also work with additional filters to block or allow websites based on a whole variety of different sources of information, whether the site is labeled or not. Therefore for enhanced functionality you are advised to install one or more of the optional modules. These are created by companies and organizations that are independent of ICRA and that may charge for their software.

Superb web content filter. Restrict Web Sites and News Groups that may contain pernicious information. Block e-mails, chat sessions, and instant messages. Control the list of applications that can access the Internet. Specify days and times when activity is allowed.

Blue Coat® K9 Web Protection is a content filtering solution for your home computer. Its job is to provide you with a family-safe Internet experience, where YOU control the Internet content that enters your home. Blue Coat's filtering database operates as a service. Unlike other filtering solutions, K9 Web Protection ensures the highest level of protection by building the most relevant ratings database available. Its effective coverage reaches more than one billion Web pages.