Technovelgy.com - where science meets fiction
is its motto.
"Explore the inventions and ideas of science fiction writers at Technovelgy (that's tech-novel-gee!) - over 1,680 are available. Use the Timeline of Science Fiction Invention or the alphabetic Glossary of Science Fiction Technology to see them all, look for the category that interests you, or browse by favorite author / book. Browse more than 1,900 Science Fiction in the News and Beyond Technovelgy articles."
The only problem with the site is that the links to all the good links are shunted to narrow columns on the left and right of the page, while a bunch of google ads run down the middle of it.
However, those are easily ignored - although if you find the site useful it would be nice to click on a few google ads, should you find them of interest, to support the site - and once you actually get to the information contained on the site, it's well worth it.