Any lovely Flutherers using or members of Flattr, Kachingle or Sprinklepenny? Comments?

I’m in the process of building a personal website, also write a blog. Am an artist, writer and general know-it-all, and would like to use a more ethical way of monetising my site than Adsense. So, am looking into nanopayment sites and a different way of getting or showing appreciation, particularly of creative ideas and work. Anyone with experience, or opinions, willing to share?