10 years ago is not old or nostalgic lol, but that recent, I would say NeoGAF, of course. Just like ResetERA is now, it was the only website I visited on the regular.
20 years ago: BlastCity.net (I believe we still have some blasters on here from back in the day), Gaming-Age.com, ShinForce.com, PSX2Central.net
25 years ago? 95 was wild west days! I used to search on Hotbot, Webcrawler, and Altavista back then. Zophar's Domain back in about 97 back when Genecyst, Nesticle, and ZSNES were still the best emus out there. Damn, those were indeed the good old days.