how to awk the *next* line?

For example, I'm tinkering with Cookies.plist
which has (among other entries) lines such as

<key>Domain</key>
<string>macdevcenter.com</string>
So I want to catch all domains (not just the .coms)
and process them. I know NR is the record number
(where the default for "record" equals one line),
so what I want might look something like these...
awk '/Domain/ NR+1 { print $0 }'
or:
awk '/Domain/ ++NR { print $0 }'Only those don't work. (Nor does 'defaults read')

Is there a way for awk to match some line...
and then do something with the *next* line?

[ There must be. ;) ]