Like many people, I enjoy StarWars, and consider the films to be
classic. Therefore I include a link to the official StarWars
website: http://www.starwars.com/
I also enjoy the Dragonriders of Pern series, by Anne McCaffrey. I’m still not sure what website I could link to about this, so I leave it to you to search for reviews and so on.
I find the world of Pern very well thought out and exciting, but I do have two reservations: the immorality - mainly of the weyrfolk - which gets to me; and the tacit acceptance of evolution, which is, to be fair, common to most science fiction writers - since Darwin popularised the theory, I suppose. But the books are very well written, enjoyable, and the people often do very good, self-sacrificing things.
My Mother has written some Sci-Fi novels, some of which, anyway, are being published on http://www.bookcram-d.co.uk/. You may well find some other works by members of my family there at some time or other as well.