Tools for mind mapping http://lifehacker.com/five-best-mind-mapping-tools-476534555

Starting your research https://library.ucsc.edu/help/research/start-your-research

Distinguishing between primary and secondary sources http://guides.library.ucsc.edu/primarysecondary

Oops! I plagiarized? http://guides.library.ucla.edu/citing/plagiarism

Citing sources http://guides.library.ucsc.edu/citesources

Diccionario Linguee http://www.linguee.es/