Free ad blocker software for linux

smf-zombie is a Sendmail milter for SPAM/virus filtration from zombie computers.
Today is more than 70-80% of SPAM and viruses going from infected Windows computers around the world.
This milter aims to be lightweight, reliable and simple. Zombie SPAM blocker is written in C.
Main features:
- It has a hosts/networks whitelist;
- It can scan messages less than a defined size only;
- It can block the most of SPAM/virus engines (up to 80-85% of them);
- It can check the sender IP address with the most reliable zombie RBL - cbl.abuseat.org;
- It can safely reject "alien" bounce messages without RFC violating;
- It can reject messages for undisclosed recipients;
- It can reject harmful attachments to prevent viruses from spreading;
- It can log all milter activities through the syslog service.
Advantages:
- Small code;
- Fast work;
- Stability (production quality);
- Few system resources are required.
Enhancements:
- A workaround for the Sendmail socket unsafe error on some platforms was implemented.
- A bug with the greeting pause code under FreeBSD was fixed.
- Configuration file, default user, and working directory were changed.
- The format of log records was changed.
- Some samples of start-up scripts were added.
- New TODO tasks were added.
- Cosmetic enhancements were made.

Ad Censor filters annoying ads by matching requested urls with a blacklist and checking the HTML code for suspicious tags.
Main features:
- Checks HTML data from HTTP connection for user defined patterns (e.g. ads) and deletes them.
- Works with any Browser (even without) because it is a proxy.
- Works even over a HTTP proxy.
- Has an easy to use GUI config editor.
- Filters can be defined with perl regex.
- Can also block cookies.

The following is an excerpt from a poster presented at the American Astronomical Societys 2000 Summer meeting in Rochester, NY.

ADS roughly 1,000,000 scanned pages contain numerous diagrams and figures for which the original data sets are lost or inaccessible. Having scans for the figures invites digitizing the data points to recover at least a part of these data.

Performing this digitization automatically is still beyond the capabilities of current OCR systems, but the computer can ease this process for a human.

This was the starting point for Dexter, a Java applet that runs in the users browsers and provides an interface for selecting the part of the page that is of interest. On that selection, coordinate axes, points and error bars can be marked and, of course, corrected. [...]

In the future, we plan to implement some recognition algorithms that would, e.g., trace a line for the user or automatically search for markers.

BFilter is a filtering web proxy. BFilter was originally intended for removing banner ads only, but at some point it has been extended to remove popups and webbugs. It cant be used as a general purpose filtering proxy because it was never intended this way.
For example you cant just block an arbitary object, you can only hint the ad detector in its decision making.
The main advantage BFilter has over the similar tools is its heuristic ad detection algorithm. The traditional blocklist-based approach is also implemented, but its mostly used for dealing with false positives.
Unlike other tools that require constant updates of their blocklists, BFilter manages to remove over 90% of ads even with an empty blocklist!
The javascript generated ads are not a problem for BFilter, as it has a javascript engine to combat them.
BFilter is expected work with any browser that supports proxies (nearly any browser does), and can forward requests to another HTTP proxy.
BFilter is written in C++ and is distributed under the GNU GPL.
Main features:
- HTTP/0.9 - HTTP/1.1 support.
- Persistent connections (HTTP/1.1 only).
- Pipelining (HTTP/1.1 only).
- HTTP compression.
- Forwarding to another proxy.
- All processing is done on the fly. It doesnt load the whole page or image before processing.
- Heuristic and regex-based approaches to detect ads.
- Detects and removes image, iframe, flash ads, popups and webbugs.
- A javascript engine to combat js-generated ads and popups.
- Heuristic analyzing of images and Flash files.
Enhancements:
- BFilter now caches external scripts it fetches for analyzing.
- Filtering accuracy was improved.
- Added a workaround for "Error decompressing response" problem with Opera and some websites.
- JavaScript engine was updated.

AdGenXS helps you create individual advertisements for your favorite Search-Engine.

A Top Rank on a Search-Engine is useless without a informative advertisement.

With AdGenXS you now can create your own advertisements and integrate them into your websites, so you know what Google and co. will tell the user about your site.

AdGenXS provides a simple preview of your ad on Google and co. You can easy modify and add your favorite Search-Engines to AdGenXS, with 2 Screenshots and a small HTML Code you integrate your Search-Engine into AdGenXS.

AdGenXS runs under all Linux, Mac, and WindowsOS! Published under the GPL, and written in QT.

Openads provides an open-source ad server, with an integrated banner management interface and tracking system for statistics.

Openads is an open-source ad server, with an integrated banner management interface and tracking system for gathering statistics. With phpAdsNew you can easily rotate paid banners and your own in-house advertisements. You can even integrate banners from third party advertising companies.

Openads can handle different types of banners in various sizes. Thanks to our flexible delivery engine it can handle regular banners and buttons, pop-ups, text ads, DHTML banners and much more. phpAdsNew is the only ad server that can handle tracking of Flash banners which arent specially prepared.

Openads is the home of some of the most popular, online advertising software available anywhere in the world. Whether you want to take advantage of your website as a source of advertising revenue or if you want to take control and extend your online advertising portfolio, Openads provides you with a family of easy-to-use products backed by expertise from the world’s largest ad space community.

When you use an Openads product, you gain access to that community for support and advice, while your feedback contributes to the future development of the products. And as it is open source, Openads products are free to download and use.