I can recommend you some great sci-fi, LEM.
Sci-fi used to be about space travel, first contact with other races, colonies, etc (around the time that man went to the moon). Here is some classic sci-fi that has survived from those days:
Dune - Frank Herbert - Consistently voted #1 sci-fi of all time, although it is published in 1965)
2001: A Space Odyssey - Arthur C Clarke (Brilliant story, told by a scientist. You won't find any scientific errors there)
The Foundation (series) - Isaac Asimov (Interesting premise, told by another scientist)
This fantastic book, I would say, is a bridge between classic sci-fi and new generation sci-fi that builds on internet technology:
Hyperion - Dan Simmons (Named after the poem by John Keats, the book refers quite a bit to Keats. Interesting and poignant, it is considered one of the best sci-fi out there. And it's an easy read.)
New generation sci-fi that deals with the near future on this earth, how things change with technology that we already have (internet etc) or are about to have (nanotechnology, etc):
Neuromancer - William Gibson (The book that started cyberpunk, where Gibson coined the term 'cyberspace'. If you like it, Gibson has written several more in the same vein)
Snow Crash - Neal Stephenson (No doubt one of the best sci-fi ever, impossibly connecting ancient Sumerian myths with programming languages, hacking the brain, etc. Impossible to explain. Time magazine chose it for its list of 100 Best English-Language Books since 1923)
The Diamond Age - Neal Stephenson (One of my favourites, about the day after tomorrow, when nanotechnology is everywhere. Social structures have significantly changed. Little girl finds a high-tech educational book that interactively educates her and guides her intellectual development through the years. Fascinating discussions about politics, society, morals, and pretty much everything else.)
Ready Player One - Ernest Cline (Brilliant new find of the past year (for me). Everyone in the world is playing this one game where keys to immense riches have been hidden. It's a fantastic puzzle, being solved bit by bit, with loads of 1980s cultural references)
If any of the above sounds interesting, let me know and I will recommend more along those lines 