Where is the money to be made from linked data? I’d say it’s mostly in consulting – creating custom solutions for companies to publish their data internally and to the outside world, and to use outside sources of data.

Two thoughts:

- While accuracy matters a great deal in business critical applications where there will be money to be made – financial applications – bloomberg makes a ton today, not sure if this approach would work for the end user. A consumer would be willing to pay for the action on that data .. Here is an example – Today when I book my ticket on BA and then forward my reservation mall to tripit. When checking in I use the option to look at seatguru about the flight. If seatguru somehow knows that the airline and is able to sell an ad for a window or ties up with the airline to get me to buy the seat.. I would gladly pay!
IMHO – Acting on intelligent data is where the money is! Companies that can tie this data to the action will be brokers & end up making money per action!

- ITunes model – Not sure if this model will fly. Facts generally want to be free, we have been used to getting facts for free thanks to wikipedia, google & freebase now. Unless of-course this is intelligent / aggregated data that gives a competitive edge on which one can act on.
May be you can elaborate this idea.

Google today understands this and hence bubbles up intelligent data like movie times, weather, times etc so they prevent the user from going to another site to act on. Every time they prevent a user from leaving their first result page, they put more ads and hence make more money!

Figuring out the kind of actions for each data set is a good way to start … Either ways we live in exciting times, thanks for the post!