This might not be the right section and I appreciate it 's more of a Search Engine question than WP.
In August I plan to have a number of guest bloggers on my site. These will be performers all taking part in a festival giving a day by day account of it all. I'm planning on setting them up as contributors to the site so as they can write posts but be able to publish it until either myself or an editor approves them.
Problem is performers are naturally self publicising and although I'm going to ask them not to repeat material it's quite possible they might be sending the same post to different blog sites. I already noticed someone doing this tonight.
What kind of problems could that cause if the search engines spot duplicate posts on different sites?
I've looked at the support stuff on google but their technical documents aren't the most easy to read.
The blog I need help with is theianfox.wordpress.com.