One of the best MapMashups i found do far. Unfortunately used as a showcase for their PliableDisplayTechnology lenses:

• LookLOCAL
  LookLOCAL is the only stop you need for online mapping and location based search. Access and compare data from Google Maps, Yahoo! Local Maps, and Live Search Maps. View over 6,000 traffic cams, import your own KML layers, search or get directions. LookLO
  (tags: maps mashup google microsoft yahoo idelix looklocal)

Some study in the context of continous partial attention i heared about in the radio (unfortunately prohibitively expensive)

• The High Cost of Interruptions Report
  Basex’ report “The Cost of Not Paying Attention: How Interruptions Impact Knowledge Worker Productivity” is the first in-depth look at a problem that causes 28 billion lost man-hours per annum in the United States. Technology promised to make us more ef
  (tags: study cost interruptions cpa basex)