Keep Bitly and Instapaper aligned: use one app's marketing actions to perform the other's.
Example: use Bitly's "Create Bitlink" action to perform Instapaper's "Add an URL" action. Bitly has 7 actions (including Create Bitlink, Delete Bitlink, and Get Bitlink); Instapaper has 2 actions (including Add an URL and Make an API Call).
Common questions about connecting Bitly and Instapaper.