There are "Submit to Hubski" buttons, but you can't integrate those with WordPress. Here is how to add a "Submit to Hubski" button to your WordPress-powered site!
1. Go to your admin panel > Settings > Sharing
2. Scroll down to "Sharing Buttons" and click "Add a new service"
3.
- Set "Service name" to "Hubski"
- Set "Sharing URL" to "http://hubski.com/submitlink?u=%post_url%&t=%post_title%"
- Set "Icon URL" to "http://i.imgur.com/Xy3vhWZ.png"
4. Click "Create share button" and drag the button to your enabled services.
Save your changes. Ta-dah!
It doesn't work with the "Official" button style though, unfortunately.
This looks excellent, Jop! Nice work.