Introduction

VidLii.com
Classic YouTube revival, mainly aiming towards 2009 but it's more of a mixture of all of them from 2007-2012.
Community is absolutely horrible.

BitView.net
Same as VidLii but aimed more towards late 2005/early 2006 as of sep29, 2018. As time goes on it updates.

FriendProject.net
....literally myspace.

AIM Phoenix
(iwarg.ddns.net/aim/)
A revival of AOL Instant Messenger, it's actually pretty cool.

Escargot MSN
(https://escargot.log1p.xyz/)
A revival of MSN Messenger + Windows Live Messenger, this is also pretty cool.