PubMed itself supports limited phrase search, sometimes
reporting, "Quoted phrase not found.", even when Google finds
the phrase.
See
this email archive item for further comments on the
PubMed search.
Google Scholar below does a good job of harvesting papers on the web,
including references to them.
http://gate.ac.ukGATE is a mature, powerful, and widely used system for working with text.
https://sites.google.com/site/naturallanguagetoolkit/HomeThere is an excellent book that leads the reader through using the system,
http://www.amazon.com/Natural-Language-Processing-Python-Steven/dp/0596516495/The National Centre for Text Mining (NaCTeM) (University of Manchester)
http://www.nactem.ac.ukThe website includes links to text mining services provided by NaCTeM; software tools, both those developed by the NaCTeM team and by other text mining groups; seminars, general events, conferences and workshops; tutorials and demonstrations; text mining publications.
http://www-nlp.stanford.edu/links/statnlp.htmlStanford's own software is written in Java: http://nlp.stanford.edu/software/
http://www.ldc.upenn.eduFreely available collections of biomedical papers
http://www.biomedcentral.com/about/datamining(I use the XMLs in my personal research after applying their XSLT preview stylesheet. - Bob Futrelle)
http://www.ncbi.nlm.nih.gov/pmc/tools/openftlist/Finding BioNLP-related conferences and proceedings
http://dev.mysql.com/downloads/mysql/PostgreSQL
http://www.postgresql.org(I now use PostgreSQL thanks to the prompting of my son, Joe Futrelle. Works for me. It includes its own GUI management tool, pgAdmin3. I typically use only two fields per table, a column-oriented approach. The manual for PostgreSQL is extensive, >2,000 pages ! There's a nice little PostgreSQL book that I find useful: PostgreSQL: Up and Running, http://shop.oreilly.com/product/0636920025061.do )