What is so cool about this?

These screenshots where made on a Linux box. The browser used is Konqueror.

Quicksearch- Search author, title and keywords. The tab labelled 'New' selects search mode: NEW search, AND previous results, OR previous results and NOT previous results.
Advanced Search- Combine searches on several fields.
Browse- Browse a search result
Details- See all info on that reference. Follow links for papers online or request their scan.