What's the best way to send data and display it on web site ?

Hi guys. I would like to send the data from few sensors and display it with some JS chars on my website. I am new to the web and I am not very familiar with all of the stuff. I assume that I will need ethernet shield for the communication. Can you explain to me what the steps should be? Do I need to create a local server/database on my computer?

There must be like 50,000 examples on line... have you done any research?