Thought I would put together a guide to some of the delights of the Oberland :

Resorts & touristy towns :

http://www.grindelwald.ch/

http://www.thunersee.ch/

http://www.loetschbergregion.ch/

http://www.adelboden.ch/

http://www.gstaad.ch/

http://www.lenk-simmental.ch/

http://www.wengen-muerren.ch/

http://www.interlaken.ch/

Sightseeing :

http://www.truemmelbachfaelle.ch/

http://www.schlosshuenegg.ch/

http://www.blausee.ch/FLASH.php?lang=de

http://www.aareschlucht.ch/english/einfuehrung_e.php

Sports & Adventure

http://www.alpinraft.ch/

http://www.berger-reisen.ch/berner-oberland/index.html

http://be-je.ch/

http://www.glidingstones.ch/

http://www.ibextreks.com/

http://www.actionsport-interlaken.ch/sommer/index.php

http://www.bernerwanderwege.ch/

will add to these as I pick up more ....