If you have a small dataset and you want to put it into visualization and shared on the web, the most handy way is the Google chart api. Although the data requests are via http get so you probably can't visualize thousands of data points, but it's very handy to make simple plots to work, in a realtime manner.
And everyone can make up to 250,000 calls per day! Wow! Which means you can do some really cool web data services. This is not entirely new, actually some libs like Ext they do have extension gadgets specifically aimed at Google Charts.
Nevertheless, it took me like only 40 min to read the API and added a little working hours tracking gadget on this blog. It's actually dynamic; i will add some navigation buttons later. It's just another incentive to keep reminding myself do not waste time on forums, and concentrate on the work =)
Google Chart Link
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