StarTrek.com for a sampling.
After what would probably be fair to say was a rocky first season, The Next Generation grew to be insanely popular. It was not only more successful during it's original run than the original series ever was during its own original airing, but the other Trek spin-offs to air in the years since (even the prequel, Star Trek: Enterprise) are really much more Next Generation spin-offs than spin-offs of the original series. While the original series may be the spark that ignited the flame, the Next Generation was the torchbearer, setting the standard that Trek fans since the 1980s have come to expect.
It's actually hard for me to comprehend, even today, that when The Next Generation first aired, even the original series was only about 21 years old, younger than The Next Generation is now. This naturally means that kids of today cannot help but look back at The Next Generation as the kind of hazy "historical relic" that I considered the original series to be. With the series now coming out on Blu-ray, I hope that fans can look back and say that The Next Generation holds up as well as fans of the original series in the 1980s would have said the original series did.