Three thoughts.

1. If you could add a button that makes a search on Google Scholar for the paper so I could find its main publication and reference counter, that would be awesome.

2. I don't like being linked directly to the PDF; I would rather go to the Arkvix page and download from there.

3. What would the policy of publications be? Only open-access papers allowed? Are pre-prints okay, or just peer review? Could one post a paper published in IEEE, with an extra field for where the paper is publicly accessible?