I guess one advantage of having man flu is that whilst you are laying around with a streaming nose and a lack of energy, you can surf the web and read whilst you are recovering.
Anyway, I came across a site which I found interesting, I also found out about a peice of software that was new to me called Tonality Pro. Basically its like Nik Silver Efex Pro, but with some very creative extras.
I download the trial and had a quick play, so here are a few examples of different versions of the same image
You can find out more about the programme and download a trial version of TONALITY PRO from hear. http://macphun.com/tonality