dlvr.it now supports bit.ly's j.mp short links. If you are a bit.ly user and want dlvr.it to post j.mp links rather than bit.ly links, it's simple.
To start posting j.mp links:
1) Log into your dlvr.it account.
2) Go to Socials > Short Links
3) Add or Edit your Bit.ly account.
4) Select "Use j.mp as short domain:"
5) Save account