OntoMaton is a tool which allows users to search for ontology terms and tag free text right in Google Spreadsheets. Its main goal is to make it easier for for users to use ontologies in a pervasive, powerful and collaborative environment. OntoMaton is a part of the ISATools portfolio.
To cite OntoMaton:
Eamonn Maguire, Alejandra González-Beltrán, Patricia L. Whetzel, Susanna-Assunta Sansone, and Philippe Rocca-Serra OntoMaton: a Bioportal powered ontology widget for Google Spreadsheet Bioinformatics 2013 29: 525-527.