I tripped over one of the most insanely useful sites I've seen in a good while: http://www.freesfonline.de/. Particularly under the 'recommended' link on the front page. It lists free (as distinct from 'pirated') science fiction available to read on the internet.
Although I'm still waiting for those little Japanese book-shaped electronic readers which actually reproduce the sensation of reading words off a printed page to come on the market here before I'm convinced of the viability of the e-publishing revolution, it's this kind of thing for which the internet can be insanely useful: tracking down excellent writing that would otherwise require tracking down hard-to-find anthologies, most of whom would stand a good chance of being out of print. The site actually serves as an excellent primer for some of the very best sf around for those looking to find out exactly why people like myself became sufficiently obsessive about the form in their youth that they felt driven to spend large chunks of their adult life creating their own.