I'm happy to announce a new open-source citation manager called Paperpile, based on many of the same principles that led to SyncUThink:

• Seamlessly integrate with the Web
• Simple interface, solid backend
• You manage Your data

We set up a Paperpile-alpha Google Group for interested alpha testers, and you can visit Paperpile.org to see when a public release becomes available.

1. Find it.

   SyncUThink uses a combination of web crawling and some clever regular expressions to find the PDF associated with your article and stores it back in CiteULike.

2. Sync down.

   SyncUThink can download your PDFs to your computer, for easy offline (or e-book based) reading and annotation.

3. Sync up.

   If a file has been modified on your computer, SyncUThink will re-upload the latest version. This way, your PDF annotations will stay up-to-date and backed up on CiteULike.

Updates:

• 2009-11-13: Fixed a few more bugs where SyncUThink downloaded nonsensical PDFs from publisher websites.

Some other useful info:

• Errors: if you keep getting errors with certain citations, let me know! You can reach me at gjuggler [at] gmail [dot] com. Specific article ID numbers are helpful, and it would be especially nice to have a copy of the Java console output, if you know how to find that sort of thing.


• NoPDF: if you have articles that you don't want SyncUThink to find PDfs for, then simply add the tag "nopdf" (or any tag containing that word) to the article.

• Download source
• Download complete project
• Download offline version

Libraries used: Processing | Apache HttpClient | JSAP

E-mail me with bug reports or suggestions: gjuggler [at] gmail