Eg. such as those on this page http://store.steampowered.com/hwsurvey
Is there any ready-made software that can do this? Alternatively, any recommendations for other software that does something similar? I know this is not really a statistics question, but I feel very strongly that data should be presented in a neat and appealing way in order to be effective so I think this question would be uesful to some people.
Update (29/12/11):
Thanks for all the responses to this question, I really appreciate all your suggestions. By automatically, I mean that I key in the data & the graph gets automatically updated.
The purpose of my project is to collect 6-10 sets of data daily (or perhaps 2x daily) over an indefinite period of time, and I want to find a way to represent the data in a website (similar to the Steam link that I provided above), while the user backend is simple enough for a non-technical user to handle. If you have any more suggestions, please add to the answers! Thanks again!