Language resources on Omniglot

Omniglot is a site that offers a tremendous amount information on language-related resources such as articles, art, information on writing systems (traditional, fictional, and undeciphered), as well as tips on language acquisition, of which here is an example:

Try to set aside some time every day for your studies, ideally when your brain is at its most receptive. It's better to study for 30 minutes every day than for 3 hours once a week. If you can spare an hour a day, break it up into two or three sessions to avoid brain overload.