  At this relatively early stage of the process of including women in the history of philosophy we need all to use all three strategies. There is nothing wrong with a purely external approach.  By all means one should include a woman philosopher on a topic just to provide an indication that there are some interesting and important women working on a particular topic.  And the strategy of anchoring a woman philosopher's work to a male canonical figure can also be a useful strategy as long as it is done in a manner that preserves the independence and originality of her work.  Finally, it is important to ask new questions of the tradition, questions that might allow some women philosophers to play a starring role rather than a walk-on part.