It is difficult–perhaps impossible–for a writer to say anything about his own work. All he has to say has been said as fully and as well as he can in the body of the book itself. If he has failed to make his meaning clear there it is scarcely likely that he will succeed in some pages of preface or postscript. — Virginia Woolf, Introduction to Mrs. Dalloway, The Modern Library edition, 1928.

I have already posted some online Virginia Woolf resources (including To The Lighthouse links)

The only resources I posted in the above link for Mrs. Dalloway:

University of Alabama in Huntsville seminar page
Notes on the lecture

And a few more links, in random order:

ReadingGroupGuides’ discussion questions for Mrs. Dalloway

Note: most of my 2008 links no longer exist so I have deleted them.