Box.net portfolio

Enabling the Box.net portfolio (admin settings)

Go to Settings > Site administration > Plugins > Portfolios > Manage Portfolios;
Select from the drop down next to Box.net "Enabled and visible"

Click the "Settings" and if desired, give Box.net a customised name (not essential)
Click the link to Open Development page http://www.box.net/developers/services
Create an account and the click "Create new application " and make a new application. (This is for the API key you need for Box.net to work)
The names you enter don't matter but in the Redirect URL box, copy and paste in the URL given you on your Box.net "Settings" link
Paste the API key you get into the API box and click "Save"

You can export items such as assignments, chat and forum posts to enabled portfolios such as Box.net. Here is an example with a forum post:
At the bottom of your completed forum post are the words "export to portfolio".

Click the words "export to portfolio" and then select from the dropdown Box.net (If it is the only portfolio enabled, it wil be the only choice!)
On the next screen, choose your sharing options and which folder to export to:

Click "Continue". If you haven't done this before you will be prompted to log in to your account. Agree and log in.
The "export complete" message will appear. Clicking "continue" will take you to Box.net if you wish.