Cutting up

Cut-up is performed by taking a finished and fully linear text (printed on paper) and cutting it in pieces with a few or single words on each piece. The resulting pieces are then rearranged into a new text. The rearranging of work often results in surprisingly innovative new phrases. A common way is to cut a sheet in four rectangular sections, rearranging them and then typing down the mingled prose while compensating for the haphazard word breaks by improvising and innovating along the way.
Gil J. Wolman developed cut-up techniques as part of his lettrist practice. Also in the 1950s painter and writer Brion Gysin more fully developed the cut-up method after accidentally discovering it. He began deliberately cutting newspaper articles into sections, which he randomly rearranged. Minutes to Go resulted from his initial cut-up experiment: unedited and unchanged cut-ups which emerged as coherent and meaningful prose.

Nowadays Spammers use very similar digital techniques to cut up texts that are available on-line.
Here are some of links to where you can try out some cuting up.

http://vispo.com/cgi-bin/wonder/cutup/cutup.cgi
http://www.languageisavirus.com/