According to bit.ly:
It doesn’t sound like a large organisation might want internal or other URL’s associated to the org to be “crawled and classified” for a public index. In fact, if employees in an organisation are generating these links as representatives in any capacity – there could be large consequences if the resulting links could be seen publicly. Outside of marketing and outward-facing people, employees could also generate “internal” links within the firewall to share with colleagues. Clearly, if those are public – they reveal the internal (private) information structure of the organisation.
What remains of most interest to us is that URL shorteners in the cloud only came about for one reason – to make a large link short so that it can fit into tweets, etc. It was an artificial use case. In the last couple of years, we have realised that there is far more significant value to be had in the enterprise than this simple use case, which only applies to the public web.
There’s many business reasons that short URL’s need to work and be hosted behind the firewall, we’ve expanded on this idea very elegantly with AmiLinker. More so – we have mapped what else can be done with this concept. The vision is extraordinary. We believe the business value we have generated for it is very significant. Watch this space for much more.