Since Dreamhost doesn’t have this feature as one click install like you get when installing Google Apps, you have to do it manually (bleah… manual work sucks).
Here is a tutorial in 10 easy steps and images (cool huh ?):
1. Go to Domains -> Manage Domains in your DreamHost account and select your domain:
2. Hit the Delete Button (This will delete the association between an user and a domain) 
and you will get something like the picture above
3. Click DNS
4. And you will need to edit here, leave the nameservers alone
5. now in the Name field add: www, select Type: CNAME and Value: pub-xxxxxxxxx.afd.ghs.google.com where pub-xxxxxxxxx is your unique Adsense for Domains ID (you’ll find this on the Adsense Setup-Adsense for Domains). Example below
6. After adding that DNS now is strait forward, you just need to add 4 more DNS records
7.
| Host Name/Alias | Record Type | Value/Destination |
| LEAVE BLANK | A (address) | 216.239.32.21 |
| LEAVE BLANK | A (address) | 216.239.34.21 |
| LEAVE BLANK | A (address) | 216.239.36.21 |
| LEAVE BLANK | A (address) | 216.239.38.21 |
8. LEAVE BLANK means not to write a darn thing, Adsense guide says to enter an @ but is better not to do it
9. After you added all, go to google.com/adsense/afd-add-domains
10. Send me a beer if it helped at http://giveabeer.com
21 September 2009 at 01:08
After completing your instructions, dreamhost panel told me: wait for 24 hour your site will come back.
This told me when i requested a new full hosting to the system because with the command “delete” the “full hosted” site disappeared.
Tomorrow we will drink togheter a “beer” if the site come back!
21 September 2009 at 16:33
like doh mate
when you wan’t to park a domanin you delete the user asociated whit it
jeez
ps: your site is back
21 September 2009 at 22:49
please, let mi recover my site soon. I deleted every line about custom DNS but the site is dead.
22 September 2009 at 02:21
why the hell did you delete it ?
24 November 2009 at 08:33
i use Adsense on my blogs and websites, i can say that Adsense is the best make money online program on the internet.
29 November 2009 at 15:01
i love Google Adsense, it allows me to make money on my personal blog and some of my health related sites.
3 January 2010 at 20:40
I tried this idk what i did wrong site not working =(
18 April 2010 at 18:10
My website as soon as I did this now says 404 Not Found. Google Error. When will I be able to get my website back? I wanted Google Adsense, but I didnt think my website would just completely disappear.