I've recently figured out new internet tool which 'reverse' the time and show you how things were in the past,
for example I'll take the website 'google', you enter the website in the address box, and you can change the years backward and forward
to see how the website looked like back then and surf there, also at forums, you can view the threads and topics, the comments and it just like you surf
in the past ! I was amazed when I found it.
Google in year 1999 : http://web.archive.org/web/19990117032727/http://www.google.com/
http://wayback.archive.org/web/