SumoBrain, the patent search system from the creators of FreePatentsOnline, is now offering free accounts. SumoBrain features full-text cross-collection searching of US patents and applications, EP patents and applications, PCT documents and Japanese abstracts, portfolios, alerts, and PDF download capabilities (for a fee). SumoBrain's content and search engine are very similar to FPO. And like FPO, registered users can save up to 1000 documents in 1-5 portfolios, and download bibliographic data from up to 250 records (at a time) in spreadsheet format.
I'm the librarian for research services in the Engineering and Science Library at Queen's University in Kingston, Ontario. I've been working with patent information since 1991, including seven years at the U.S. Patent and Trademark Office. I believe that the dissemination of patent information is a public good and should be promoted, especially in the education of science and engineering students.