Websked's integration with Slack is so nice that it's a shame there aren't more integration options readily available.
Our Audience team (which manages our homepage, social media and newsletters) uses Airtable to keep track of what has/hasn't been used on our platforms and when, which goes beyond the tracking and note functionality that Websked itself provides out of the box. It would be nice if stories pitched in Arc could automatically go to their Airtable spreadsheet to more easily keep track of all the stories coming and going.