I first started reading SF in about 1969, when I was 9, which I picked up one of Hugh Walters' children's SF books (Mission to Mars, Voyage to Venus etc).
Best SF is getting a makeover as it enters its second decade. This site is a work-in-progress. You can still access the main site, in all its hand-written HTML glory at http://www.bestsf.net/index.html. I’ll let you know when this new site should be the main port of call.