If you are looking specifically for media-related history - I had a link for "Media History in the 1990s" posted at the end of my story "Any Time At All" - although it looks like the link is changed slightly now.
Here's the correct link:
http://www.mediahistory.umn.edu/timeline/1990-1999.html (My author's note said it [was] "a timeline of “media history” in the 1990s. It includes historical milestones in, well, media: telephones, movies, bar codes, television, internet, cell phones, game stations, music players…
Lois had to want a Walkman because MP3 players haven’t been invented yet. <g>")
The website is the University of Minnesota's Media History Project, and the link for the entire timeline (not just 1990s) is
Media History Project Timeline 'Toc