Title
Competing for users' attention: on the interplay between organic and sponsored search results
Abstract
Queries on major Web search engines produce complex result pages, primarily composed of two types of information: organic results, that is, short descriptions and links to relevant Web pages, and sponsored search results, the small textual advertisements often displayed above or to the right of the organic results. Strategies for optimizing each type of result in isolation and the consequent user reaction have been extensively studied; however, the interplay between these two complementary sources of information has been ignored, a situation we aim to change. Our findings indicate that their perceived relative usefulness (as evidenced by user clicks) depends on the nature of the query. Specifically, we found that, when both sources focus on the same intent, for navigational queries there is a clear competition between ads and organic results, while for non-navigational queries this competition turns into synergy. We also investigate the relationship between the perceived usefulness of the ads and their textual similarity to the organic results, and propose a model that formalizes this relationship. To this end, we introduce the notion of responsive ads, which directly address the user's information need, and incidental ads, which are only tangentially related to that need. Our findings support the hypothesis that in the case of navigational queries, which are usually fully satisfied by the top organic result, incidental ads are perceived as more valuable than responsive ads, which are likely to be duplicative. On the other hand, in the case of non-navigational queries, incidental ads are perceived as less beneficial, possibly because they diverge too far from the actual user need. We hope that our findings and further research in this area will allow search engines to tune ad selection for an increased synergy between organic and sponsored results, leading to both higher user satisfaction and better monetization.
Year
DOI
Venue
2010
10.1145/1772690.1772721
WWW
Keywords
Field
DocType
top organic result,consequent user reaction,information need,incidental ad,actual user need,organic result,responsive ad,user click,higher user satisfaction,search result,complex result page,search engine,web pages,measurement,web search engine,satisfiability
Data mining,World Wide Web,Search engine,Information needs,Web page,Computer science,Monetization
Conference
Citations 
PageRank 
References 
13
0.62
14
Authors
5
Name
Order
Citations
PageRank
Cristian Danescu-Niculescu-Mizil193548.42
Andrei Broder27357920.20
Evgeniy Gabrilovich34573224.48
Vanja Josifovski42265148.84
Bo Pang55795451.00