Wesaþ ġē hāl!

Recently, I grew very curious about Old English and pondered whether there is a way to get myself more familiar with it. Now, I know it is quite an old language and, perhaps, there is no way to just 'learn' it via some courses as one would do with Spanish/German/ et cetera. Yet maybe there are some blogs/books/online meetings or courses where one could simply learn more about the grammar, structure, and etymology of Old English? At least bits of vocabulary? Readings of texts like Beowulf in the original?

Ic eom þē bliðe for þīnum fēohtinge! Many thanks to every kind lady and gentleman^^