Admixture is an online ad network for advertisers targeting ethnic and lifestyle demographics, including Hispanic, Asian, African-American, and Gay & Lesbian channels.

Source: Screenvision.com

It's never comfortable rejecting potential suitors face-to-face. RHbrands, a mobile and in-call media company, claims "The Rejection Hotline®," located in 200+ cities across the country, including Atlanta (404-260-1318), Los Angeles (310-735-0099) and New York City (212-660-2245), is a “public service” to both the rejector and the rejectee. The rejectee dials the number to hear: 

"Hello, this is not the person you were trying to call. You've reached The Rejection Hotline.  The person who gave you this number did not want you to have their real number ... So why were you given a Rejection Hotline phone number?

• Maybe you're just not this person's type (note: this could mean boring,
  dumb, annoying, arrogant, or just a general weirdo).
• Maybe you suffer from bad breath, body odor, or a nasty combination of the two.
• Maybe you just give off that creepy, overbearing, psycho-stalker vibe.
• Maybe the idea of going out with you just seems as appealing as playing leapfrog with unicorns."

RHbrands offers hundreds of humorous hotlines to get people out of sticky situations such as 'Bad Breath Notification,' 'One Night Stand Hotline,' and a 'Confession Hotline'.

NeoEdge Networks provides game publishers, portals and advertisers with safe, simple and profitable ad-supported game play through its NeoARM™ technology suite and NeoAds™ Game Advertising Network.

The company offers advertisers rich video game commercials and enables a new ad-supported business model for game publishers and portals. The company also offers a ‘free to play’ casual games website at MostFun.com.

Sugar Inc. is an online media company of blogs and websites that seeks to be “the definitive online media company for trendsetting, passionate women ages 18-44. Sites and communities include Shopstyle and the Sugar Network which includes PopSugar, SugarLoving, BuzzSugar, BellaSugar, FabSugar, CasaSugar, YumSugar, FitSugar, GeekSugar, GiggleSugar and DearSugar.

via Techcrunch

Nabbr is an online ad network and widget promotion network that specializes in reaching over 36 Million Gen-Y social net users.

IACAS Network (IAC Advertising Solutions) is an online ad network that offers marketers a variety of advertising opportunities across some of the world's top interactive brands, including 236.com, Ask Sponsored Listings, Citysearch, Evite, Excite, Fun Web Products, IWON, Match.com, RealEstate.com, Ticketmaster and Very Short List.

VIZI is an online ad network offers solutions across multiple media platforms. They represent over 20 exclusive major media properties and “boutique” specialty verticals.  Vizi.Direct has over 2,000 properties that serve advertising to their users, reaching almost 80% of the entire worldwide internet.

YuMe is the first dedicated broadband video ad network that offers a brand safe advertising experience that can be delivered to any device – PC, TV, mobile and more – whether streamed or downloaded.

MSN Live Search services include MSN Hotmail, MSN Messenger, MSN Search, Groups, Shopping, and Personal Finance.

Microsoft Digital Advertising Solutions provides solutions for marketers to connect with their target consumers across multiple digital touchpoints.

Google provides web search as well as specialized search.

Google News (including archives)
Google Patents
Google Product Search
Google Scholar (Scholarly papers)
Google Special Searches (including Public Service & Government)
Google Video Search