I have been really involved in investigating sponsored search and related forms of online marketing.
Other than sponsored search, there are few technological innovatives in information retrieval that has had such impact. The previous innovation with substantial impact is Page Rank, and that was in the mid-90s (see http://infolab.stanford.edu/pub/papers/google.pdf).
Bill Gross (www.idealab.com) is generally credited with creating the sponsored search paradigm in 1998, launching Goto.com that later became Overture and then Yahoo! Search Marketing. The two largest sponsored search entities, Yahoo! Search Marketing and Google, account for the majority of the sponsored search traffic and with content servicing platforms.
It is difficult to find an area of research with more immediate impact and also long range implications in a variety of areas including commercial and social.
Most of the academic research has been in the online auction area (see for example http://research.yahoo.com/workshops/ssa2005/sched.html).
Some of the search engine marketing firms like Enquiro (http://www.enquiroresearch.com/) have conducted some research in this area.
Dan Fain and Jan Pederson have written a nice history of sponsored search - http://www.asis.org/Bulletin/Dec-05/pedersen.html
I have done some research on sponsored search, including:
The effectiveness of Web search engines at retrieving relevant content, including sponsored links - http://ist.psu.edu/faculty_pages/jjansen/academic/pubs/jansen_ecommerce_ipm2006.pdf
The searcher bias against sponsored links – http://ist.psu.edu/faculty_pages/jjansen/academic/pubs/sponsored_links_jansen.pdf
What causes a searcher to click on a sponsored link – http://ist.psu.edu/faculty_pages/jjansen/academic/jansen_factors_sponsored_link_clicks.pdf
Whether or not sponsored links are as relevant as organic links – http://ist.psu.edu/faculty_pages/jjansen/academic/pubs/jansen_tweb_sponsored_links.pdf
What is the click through rate (using real search engine data) on sponsored links – http://ist.psu.edu/faculty_pages/jjansen/academic/jansen_sponsored_links_one_listing.pdf
Overview and history of sponsored search - http://ist.psu.edu/faculty_pages/jjansen/academic/pubs/jansen_overview_sponosored_search.pdf
Click Fraud - http://ist.psu.edu/faculty_pages/jjansen/academic/jansen_click_fraud.pdf
Yahoo To Integrate Properties With Facebook Connect
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Yahoo announced on their blog and press area that Yahoo will integrate their
properties with Facebook Connect at a pretty massive level. The Yahoo
announce...
31 minutes ago
