Here’s some detailed info and guides for the renku process. Especially accessible and useful is the following from Keiji Minato
http://www.cordite.org.au/features/keiji-minato-notes-on-renga
and also fromTadashi Shôkan Kondô and William J. Higginson
http://renku.home.att.net/Link_Shift.html
and John Carley’s detailed site too is worth visiting
http://www.renkureckoner.co.uk/
and from the NZ Poetry Society
http://www.poetrysociety.org.nz/aboutarchivedhaikuarticles
.
Examples of finished and ‘live’ renku (in English)
http://www.cordite.org.au/poetry/291-haikunaut/haikunaut-island-renga
http://www.renga-platform.co.uk/webpages/leaves2006.html