e-planning
- Ad serving platform with different versions for publishers, networks and agencies. Includes rich media, geotargeting and eCPM optimization.
- http://www.e-planning.net

Accipiter
- Comprehensive unified platform for online advertising. Includes ad server, ad marketplace management and behavioral targeting.
- http://www.accipiter.com/

Openads
- A free, open source ad server based on phpAdsNew.
- http://www.openads.org/

ClickZ Network - Ad Resource Guide
- Reviews of the 500 best web advertising and marketing resources and in-depth articles on web advertising and promotion.
- http://www.clickz.com/showPage.html?page=resources/adres

ZEDO Inc.
- Powers ad serving for websites, advertisers and ad agencies.
- http://www.zedo.com/

Falk eSolutions AG
- Providers of fully-integrated, ASP-based ad serving and email marketing solutions.
- http://www.falkag.net

QwikAd
- A free SQL-based ad management system written in Perl. Features: excluding ads, targeting, tracking, reporting, rich-media ads.
- http://qwikad.sourceforge.net/

Valuead
- Ad serving platform with features such as geo-targeting, frequency capping and online reporting for high volume websites.
- http://www.valuead.com

Renegade Internet
- Professional advertising banner management system: cycle and rotate banners, rich media, SSI, non-SSI.
- http://www.renegadeinternet.com/

Yasna Inc - Ad Dispenser
- Ad server software written in Java that allows for serving and tracking banners. Supports multiple sites, different page zones, campaigns, limiting by impressions and click-through rates.
- http://www.addispenser.com/

adknowledge, Inc.
- Ad formats include button, animated banners and rich media formats.
- http://www.adknowledge.com/

Ad Peeps
- Banner rotation software that allows you to track a variety of banner, rich-media, and text ads on your website.
- http://www.adpeeps.com/

Ad Server Solutions
- Provides ad management software applications and remotely hosted ad serving services.
- http://www.adserversolutions.com/

24/7 RealMedia
- AdServer products, providing inventory management, targeting and delivery, campaign reporting and forecasting. FAQ, screenshots, feature list, request form for demonstration. Also career opportunities, company details.
- http://www.247realmedia.com/

Quigo Technologies, Inc.
- Offers automated contextual ad serving systems for online publishers, portals, PPC engines and shopping sites.
- http://www.quigo.com/

RampidAds
- Banner rotation software allows users to rotate banners and advertisements on their websites. Ad server software that can manage ad rotation. Free advertising software demo.
- http://www.rampidads.com

AdRevolver
- Multiplatform banner ad management available both as a stand-alone product and as hosted service solution. Provides detailed tracking and statistics and targeting.
- http://www.adrevolver.com/

AdvertisementManager.com
- Ad management system capable of serving unlimited banner dimensions including rich-media and text ads. Full administration via user-friendly web-based interfaces. Supports Mod_perl environment.
- http://www.advertisementmanager.com

Ad Eagle Suite
- Full featured advertising software. Multiple media types, client side stats, automatic expirations, multiple expiration methods. For Unix, NT, Windows2000.
- http://www.ad-eagle.com

AdCycle
- Package to manage ad campaigns on one's web site. Control targeting, unique impressions, hourly distribution, and start dates. Choose from over 7 media formats including text links. Unix platform.
- http://www.adcycle.com

Central Ad Software
- Ad management solution used to rotate and schedule advertising throughout your site.
- http://centralad.com/

Internet Appliance
- A plug and play technology that automates World Wide Web content rotation, targeting, and management in one simple system
- http://www.spinbox.com