nnp postgis search of g.a. gazeteer (pgsql, postgis functions)
scanning free-text for controlled vocabularies (pentaho, montylingua)
populating a key-value (columnar) postgres table from a tabular source-file (postgresql, awk) for value-distribution analysis and pattern finding (using datacleaner)
scanning taxonomy hierarchies for multiple parents (postgresql, awk)
analysing a google-doc spreadsheet using their webservice api (pentaho, javascript)