Useful Links:

	Repbase update, a database of sequences representing repetitive DNA of different classes (including SINEs) from different eukaryotic species (Jurka 2005).
	GeneDoc, a multiple sequence alignment editor (Windows only) with a highly convenient Find tool (F9) that allows fuzzy string search in the sequences.
	Genomic tRNA Database, a database of tRNA genes and sequences from a variety of species (Juhling 2009).
	mfold, a tool for predicting the secondary structure of RNA using thermodynamic methods.