Capturing data from the web

Using Arduino Programming Questions
1

I am new to arduino programming and not sure of what kind of codes to use. I need to send my data to the web using 1 ethernet shield and another to receive my data from the web. I have read and some use the twitterclient to do it. However, I am still unsure which is applicable to my programming.

Thanks in advance for your help and time.

2

What kind of data? What format is it in? What do you want to do with the data? Which Arduino are you using?

3

I am thinking of using either word or numeric value obtained from the sensors. The data obtained will then produced signal (but for testing, I am using LED as my indicator). I am using UNO and ethernet shield for this programming.