ADTECH: ADTECH’s ad serving solution trends towards larger sites, but if you fit in with them, it does offer some fairly impressive features such as live testing, real-time monitoring, user tracking, rich media support and a whole lot more. Inout Adserver : It is a highly active exchange that allows the clients to efficiently manage both advertisers and publishers. It is a feature-intensive service, offering various exclusive features not available on other ad server systems, such as the ability to buy and sell ads with other ad networks using the same platform to quickly monetize the traffic, the support for XML feeds and 3rd party tag exchange, an automated payment and various among others. Atlas Solutions: Atlas Solutions focuses heavily on allowing you to use the real-time data it collects to make more organized decisions about which ads you should be serving and to whom. You can also prioritize advertisements that are needed to keep your advertisers happy and make sure they get the impressions they want. Bluestreak: A third-party ad server that allows you to upload your creatives and preview them before setting them live. Reports are updated every 20 minutes to allow you to adjust any campaigns you are running in near real-time. Bluestreak puts a heavy emphasis on rich media, so it’s very video ad friendly. DoubleClick: DoubleClick is probably the best known of all the ad servers out there, but it is mostly for the controversy that once surrounded its tracking of users, and the lengthy time the purchase by Google took to be approved. DoubleClick still operates as a separate entity and focuses heavily on making widgets out of rich media ad campaigns. They also provide you with forecasting tools to help you predict future campaign needs. Google Ad Manager: Leave it to Google to come up with one of the simplest solutions out on the market for ad servers. With Google Ad Manager you simply define which sections of your site you want to serve ads for and then generate code for each one individually. Once the code is entered, all creative uploads can be handled in the manager where you can also get reports on how each ad spot and individual ad is performing. OpenX: OpenX, formerly known as phpAdsNew, gives you the option of using a hosted solution for your ad serving, or you can download it and run everything from your side. You can manage inventory easily with just a few check marks, geo-target ads by country so only the visitors you want to be served will be, view statistics for each ad placement and more. Smart AdServer: Smart AdServer focuses on rich media campaigns for sites in Europe and features the ability to launch just about any style of advertisement you can think of in just three clicks. Using real-time monitoring, you can choose on the fly if you want to target the ads based on geography, ISP, browser, keywords and more.
Not a bad list but OpenX is actually now Revive: http://www.revive-adserver.com/ We actually use MaxCPM which is a Pay per Click/Cost Per Action platform allowing display ads only. All ads must be uploaded and approved as well as landing pages. It has automatic A/B Testing for advertisers on both creatives and landing pages. The stats are real-time and its biggest advantage is the built in network exchange with other 200+ networks using the same platform. Your publishers serve ads from other network users and your advertisers ads will serve publishers on the network giving you access to a full inventory to work with day one.
OpenX is still OpenX, yes the open source version is now revive, but they still maintain their enterprise solution. ADTECH is a horrible ad server. Technology is from the 90' and early 2000's. Their tags default with no way to control it, they don't have or support historical data, they have selections like "Automatically link campaigns to placements" so you can set a campaign to automatically add it self to be served to new sites/placements...only problem is its only updated 1 time every 24 hours so the site will serve defaults unless you manually allocate campaigns to that site...The charge you for defaults which are "ADTECH ads" and you really don't have much control over when ads default. You could have a 100% fill campaign linked on a tag, and you will still get defaults. You have to manually create every new publisher/user, and the process of linking them to a site/url, then you have to link campaigns to it, and have to manually send out ad tags in most cases. Not to mention their staff is brainwashed into thinking their technology is consistent with industry standard technologies today. Oh and how can I forget, their API is archaic and your developers (if they don't reject the project due to lack of up to date documentation, or just messy-ness of the API) will spend HOURS debugging to figure out why functions aren't working which are listed on their documentation as active. Then you email their support team and they tell you their API is out dated and required a complete overhaul. My suggestion, don't base your business on a technology which can't keep up. Our company used them and recently moved to AdZerk. Its a much much much better solution. Surprised they are not on your list. Also 24/7 Real Media has an Ad Serving Solution not on your list. Exoclick also has an adserving solution you can license (I forgot the name). So does Clicksor (which I would suggest not using because most serious ad servers block clicksor IP addresses).