Collaborative Poetry

This may be old hat, but I’m proposing a site for collaborative poetry where each contributor finishes the latest writer’s verses and adds unfinished verses of his/her own. The added stanza would have about four lines with the last word on each line missing. The poetry would not have to rhyme, and the unfinished poetry need not be original though the result (+ 1 word/verse) should be. If two happen to annotate the same stanza, then the next contributor could choose to build on either one.

For example, if the latest contribution ended with:

Without ___
as a ___
swoops on an ___
Love shakes my ___

The next might be:

Without sound
as a hound
swoops on an innocent
Love shakes my tent

There was a young lady from ___
Who had a small problem with ___.
Whenever it ___,
She had to go ___,
And ever since then she’s been___.