The UK arm of European mobile phone group mmO2 will use Espotting Media's search results services on an exclusive basis for eight channels on its site (www.o2.co.uk).
The channels will cover travel, entertainment, sport, automotive, jobs, health and beauty, house and gardens and casino.
Users clicking onto a channel section from the home page will be presented with a list of sites provided by Espotting. The listings have been customised to reflect the look and feel of the O2 portal. The mobile operator will receive a share of all pay-per-click revenues generated by the listings.
Michael Mason, head of European portals at O2, said the deal will lay the groundwork for the eventual integration of Espotting's search results into O2's wireless portal.
Seb Bishop, co-founder of Espotting, said: "It's about being in the right place at the right time, and we'll be in mobile from the beginning."