user8423: I'm new to the world of Arduino & PI, so far it's been a fantastic experience but I'm now looking to build something a bit more practical.
My plan is for the PI to host a JSP Servlet website.  I'd like to go to a certain page of this site: 'powerCycleDevice' for example where it would pass a parameter in '?=on' or something similar.  This would then be picked up by the Arduino which in turn would then power said device.
It's also be nice to just use it as a monitoring station.  If I have several Arduinos hooked up (and I plan to - think Wallace & Gromit :)) then it'd be nice to view the statistics of each of the sensors.
My problem is not knowing if a: it's possible (I'm certain it is) and b: where to start.
If anyone can lend any advice, hints or tips on where to get started it would be fantastic.  A noob guide or tutorial would be great as I'd then use the info and expand upon it.
Thanks in advance.  

user9934: You can use Ardulink. It's a java open source project of mine. It can control an Arduino boad. So you have just to write a servlet that call my library. That's it.
See this post to understand how install ardulink in a PI: http://www.ardulink.org/how-to-install-arduino-pc-link-on-raspberry-pi/
You can read a sample code that sends some messages to Arduino you can read this post:
http://www.ardulink.org/how-to-blink-a-led/
The most important statement is Link link = Link.getDefaultInstance();
Link is the Ardulink class you need to send (and receive) messages.

8423: <p>I'm new to the world of Arduino &amp; PI, so far it's been a fantastic experience but I'm now looking to build something a bit more practical.</p>

<p>My plan is for the PI to host a JSP Servlet website.  I'd like to go to a certain page of this site: 'powerCycleDevice' for example where it would pass a parameter in '?=on' or something similar.  This would then be picked up by the Arduino which in turn would then power said device.</p>

<p>It's also be nice to just use it as a monitoring station.  If I have several Arduinos hooked up (and I plan to - think Wallace &amp; Gromit :)) then it'd be nice to view the statistics of each of the sensors.</p>

<p>My problem is not knowing if a: it's possible (I'm certain it is) and b: where to start.</p>

<p>If anyone can lend any advice, hints or tips on where to get started it would be fantastic.  A noob guide or tutorial would be great as I'd then use the info and expand upon it.</p>

<p>Thanks in advance.  </p>
 9934: <p>You can use Ardulink. It's a java open source project of mine. It can control an Arduino boad. So you have just to write a servlet that call my library. That's it.</p>

<p>See this post to understand how install ardulink in a PI: <a href="http://www.ardulink.org/how-to-install-arduino-pc-link-on-raspberry-pi/" rel="nofollow">http://www.ardulink.org/how-to-install-arduino-pc-link-on-raspberry-pi/</a></p>

<p>You can read a sample code that sends some messages to Arduino you can read this post:
<a href="http://www.ardulink.org/how-to-blink-a-led/" rel="nofollow">http://www.ardulink.org/how-to-blink-a-led/</a></p>

<p>The most important statement is <strong>Link link = Link.getDefaultInstance();</strong></p>

<p><strong>Link</strong> is the Ardulink class you need to send (and receive) messages.</p>
