It's easy - just select the desired access level, copy this link and send it via email, instant message, etc.Link: Just a link to your wiki. Post this anywhere and people can ask you for the invite key.
Now you need to burn your saved version of Ubuntu to a CD-R.
All you need is a simple 700 MB CD-R, which you can get packs of at any general merchandise store.
First, you need to download an open source software called InfraRecorder (you can find the link to this on the home page under sources)
On the left hand side of the web page, under the heading "Pages" select the link titled "downloads"
You then select the word "Download" on the line that says "Download version 0.44.1 for Windows 2000/XP/Vista."
You then come to a page that says Thank you for Downloading and a window will appear that will ask if you want to RUN or SAVE. Select the option that says SAVE and save it to your desktop to run later.
After you have downloaded InfraRecorder you are going to run the program.
First double click the icon indicating the program.
When the program opens, select the "Actions" option on the tool bar located on the top of the page.
Then you select the the option that says "burn image"
You then find your file that you downloaded off of unbuntu.com and double click it.
A box will appear. Make sure that all the options on the bottom are check marked except for the one that says "simulation"