I always use http://slightlymagic.net/base.shtml for the purpose of getting the update. It is only semi-official (i.e. linked from mwsgames.net). However it includes more flavor texts and less errors... They also have a high-quality scans project and link to many sites that mirror those scans.
p.s.
Hi there, I'm new
p.s.
Hi there, I'm new