Circolwyrde Wordhord - Ever wondered how to say "Computer" or "cathode-ray tube" in Old English?  Well go to this page, and find out!  (This is also mirrored here)
Instant Old English - An Old English Phrasebook containing a few helpful phrases in OE, and some short replies
Modern English to Old English Vocabulary - a basic list of Modern English to Old English words.  All the words here are in this site's vocab list.
Variant Words in Anglo-Saxon - Search the Old English Corpus for Variant Spellings of any Old English word!-NEW!!