Almost any industry can be rattled if the power goes to the consumer instead of the vendor. This has happened with consumer products but could go to services etc.

-automobile disrupted by cars from asia - oh shit happened!

-book industry disrupted by self published electronic books

-shipping industry disrupted by automation - happening

-pcs industry by netbooks with no moving parts/cellphones

-Windows/Office by Ubuntu/Openoffice (outside of USA)

-power industry by cheap solar cells - pipedream

-housing industry by prefab homes - pipedream

-newspapers by online media - happening

-drug industry by Indian made generic drugs - legislation won't let it happen

-all driving trades (taxis, truck driver etc) by automated DARPA style cars - pipedream

-most manufacturing jobs by cheap chinese/korean robots - happening

-most farming jobs by automation (eg AutoFarm - gps/AI driven tractors) - happening

-Californian/Arizona farming by cheaper farms in Mexico, Guatamala etc - happening

-drive through order takers by voice recognition -Long distance by skype, calling card & SIP providers - happening

-Business travel by HD Video conferencing systems - happening (Cisco + HP)

-Telecom equipment by Huawei

-Oil furnaces by alternative pellet combustion system (see Jon Udell) -??

-Military soldiers by remote controlled robots - happening

-billboards by gps aware ads

-interbroker dealers by cheaper competitors (ITG - etc) - happening

- speeding ticket writing by RFID tag reading systems (UK) -various industries by the rental business (Netflicks, Zipcar etc)

Candidates that will not be disrupted

- Governments - always political and loath change

- Unions

- Near monopolies (Heathcare, Cell phone)

- Religion to an extent