Today most things called science fiction are either fantasy or some other genre entirely, but I was introduced to the classic and pulp works, rather different to today's offerings.
I cherish my 1979 Encyclopaedia of Science Fiction. Gollancz, long associated with SF, have placed the third edition of this encyclopaedia online- Science Fiction Encyclopaedia (USA) and for convenience I will add their search box at the bottom of this page. Almost the same content but from the UK is Encyclopaedia of Science Fiction (UK) most of whose links go to the US site but the Anniversaries and Deaths pages are UK based.
But now onto my experiences and some interesting SF links:-
My introduction to Science Fiction came in the late 1950's with the juvenile books by Angus MacVicar (the Lost Planet series) and E C Eliott (Kemlo stories). I quickly moved on to Galaxy Magazine and the Ace paperbacks, and onward from there. So first, the written word element....
There were a number of British science fiction magazines that I started reading from around 1962, (including New Worlds under the editorship of John Carnell, and Peter Hamilton's Nebula) and also bought some older ones from market stalls.
At this time I enjoyed reading the short stories of F G Rayer. Not too long after, the British SF magazine market went all new-wave and obscure (Michael Moorcock took over editorship of New Worlds), and stopped buying the stories that I enjoyed, so by the end of the sixties I had stopped buying what British SF mags remained, as I think many others did. Fortunately the classic SF story continued to be welcome in the several SF magazines from America which were available here.
Due to an interest in amateur radio, I made contact with my first SF Author, radio amateur F G Rayer who died in July 1981. It would be nice to have his works collected, and I did try to offer some on the internet to mark the 30th anniversary of his death but negotiations were ceased. Quite a lot of his work is available from Amazon Marketplace as second hand SF magazines. There is an article regarding himself and SF on the internet by F G Rayer from 1953 (note: this link is to an image, not text).
An exhaustive bibliography of some SF authors but with good detail is at ISFDB || A major collection of SF (35,000 books) is held in Liverpool University and is accessible at Liverpool by appointment (18 reading spaces).
The complete works of Sydney Fowler Wright || Wayback archived copy of SFW site, which is often down.
There is an extensive bibliography available at Center for the Study of Science Fiction.
Useful introduction to Science Fiction from wikipedia.
The boundary between tv and film is now quite blurred. An excellent introductory article on film and science fiction is at Wikipedia.
Wikipedia has a good article about SF on TV.
tv.com has many pages on lots of tv shows which are more or less science fiction related - their definition is quite broad.
TV.com has a lot of info on Classic Trek and even more on TV.com- The Next Generation not to mention TV.com Deep Space 9.
1995 was the first Babylon 5 convention in Britain, held in Manchester - so we went along and enjoyed meeting with jms (Joe) the creator. Also present was Majel Barrett Roddenberry, who just happened to agree to appear in B5 whilst she was there in Manchester, and indeed she did make an episode of B5.
jmsNews has archived ALL of jms news posts where he discussed the writing and production of the show in searchable form. Joe has now moved away from usenet onto Facebook.
The Lurkers Guide although long a dormant web site still has a great deal of info. on Babyon 5.
Try the data held on TV.com Babylon 5 .