Time and expense tracking web app Harvest is now allowing users to interact with the application via Twitter. This is really fascinating.
People have flailed around quite a bit trying to provide business cases for Twitter and generally failed. The value is real, because facilitating connections and interactions among people has business value, if not an easily measurable ROI. People have also wondered how anybody could make a business out of Twitter, because they’re offering a free service that sucks up more and more infrastructure resources. This might be an answer.
From Josh Catone at Read Write Web:
When Danny Wen of Harvest emailed us to let us know about the upcoming Twitter integration, he told us that the company looks at “the integration as a start of bringing more business use cases to Twitter.” We agree, and further it could signal a potential business model for Twitter. While currently everything on Twitter is free — from setting up an account, to running a bot, to using the API — it seems plausible that Twitter could start charging for business uses.
Harvest is essentially using Twitter to power a quick mobile interface with their application and that’s something that perhaps Twitter should start charging for.
Now, there’s nothing here that Harvest couldn’t have done without Twitter. Basically, this is just letting people submit information to their application through SMS. But Twitter’s already built that, so why go do it again?
If Twitter starts charging people for this kind of service (which I think is reasonable; it offers something useful for web app developers), they do have one challenge. It’s got to work. Twitter’s lack of reliability has become a running joke among users, though it seems to have improved in recent weeks. You can get away when your infrastructure is just used for twittering with your peers. For business applications… no.
And of course hardening the infrastructure requires money, so this all makes perfect sense: charge people to use Twitter with their apps, and you’ve got a revenue stream to support the infrastructure.
I like it. I’m curious to see who else enters this sort of arrangement with Twitter.

Debbie Weil argues that