Resources for purchasing online advertising:
- WhatRunsWhere – online advertising intelligence; shows where ads are running for any brand; paid service
- Moat – displays banners used by major brands
- Self-serve ad networks:
- Google AdWords – ads on Google (and partner) search engine and on web sites that run Google AdSense; CPC pricing
- Bing Ads – ads on Bing & Yahoo (and partner) search engines and a limited amount of display ad options; CPC pricing
- Facebook Ads – ads run on Facebook with extensive demographic targeting; CPC or CPM pricing
- Twitter Ads – ads run within Twitter stream; Cost per Engagement (click, retweet, favorite, etc.) pricing; retargeting available as well
- Pinterest Ads – ‘promoted pins’; various bidding options: CPC, CPE, CPM, CPI (install)
- Quora – ads run on Quora; CPC pricing
- SiteScout – advertise on individual sites, or multi-site via targeting options; CPM pricing
- POF – dating site ads; target based on dating profile demographics and usage details; CPM pricing
- LinkedIn Ads – professional/career targeting; CPC or CPM pricing
- BuySellAds – site-specific placements; flat rate or CPM pricing
- Yahoo! Ad Manager – ads within Yahoo! content streams; few targeting options; CPC pricing
- 7Search – second tier search and display text ads; CPC pricing
- Reddit – target by subreddit; CPM pricing
- StumbleUpon Paid Discovery – pay for visits to your content, via StumbleUpon; demographic/interest targeting; pay-per-unique-visitor
- Shiny Ads – powers self-serve ad buying/selling for various individual web properties; mostly CPM or flat rate pricing – some CPC
- AdSupply – interruption-type advertising (interstitial, overlay, pop-under, etc.); CPV pricing
- IndustryBrains – site-specific or category targeting; CPC or CPM pricing
- Outbrain – promote content pieces on other websites; CPC pricing; CPC and CTR determine distribution levels
- StackAdapt – promote content pieces on other websites; CPC and CPM pricing; access to many ‘native/content’ ad services from one platform; various targeting options
- Adblade – content-style ads; CPC or CPM pricing
- AdRoll – retargeting site visitors; CPM pricing
- Advertising.com – display text ads purchased on a per site or audience-type basis; CPC or CPM pricing