@Nabella You should check out bluemaxima/Ben Latimore's attempt to catalog all the flash games and movies on the web. He's currently got over 11,000 games archived (courtesy of the Internet Archive), and a special player to play them (bypassing sitelocks, etc.):
ZJ
Will there be any way to preserve the Easter Eggs that were baked into certain flash cartoons via clickable hidden links? Obviously those have been lost in their current video conversions...
TomFulp
Those will still work when you load stuff via Newgrounds Player.