This site is remarkably easy to use—just set the decade you want to visit from 1900 to 2000 with the up and down arrows, and click GO.
You will then Time-Warp to the decade you choose. Use your mouse to scroll over the pictures of the technology; phones, radios, record players, typewriters and you’ll get the option to check them out more in-depth. When you scroll over them, you get options to check out. Pick what you want to learn about, and get whisked to information about the object you selected. You can even learn about toys—what did kids play with during that decade that fit in as technology?
I had a lot of fun starting in the 1900′s and working my way through each decade till I reached 2000. It is a great way to discover how things have changed and what leaps and bounds technology has made in just 100 years.
For a good description of what all you might find on this site you may want to check out the Time-Warp Project button at the top of the page. The Research button yields some great information too. Just scroll down and check out the timeline.