Many songs from many countries and times convey questionable ideology, and many more songs have been (ab)used in such contexts, with or without the authors' consent. Always be careful what you sing or approve of in public, but censorship of Internet sources would not be the right answer even if it were possible.

ingeb.org is relatively reliable source, with no visible ideological agenda of its own (as opposed to deutscheslied.com), though not on the high scholarly level sometimes asked for by Mudcatters. Well, the Mudcat's own "DT" is not the pure Philosophers' Stone either, but much better than nothing. Our thanks are due to all such collectors.

Websites run by university scholars exist in many languages, but inevitably with much smaller databases.