Well there we go, I feel a bit sillly now - the symbol is SS. I guess what you can take from that is the SS isn't obvious enough (or I am half-blind).I feel the balance between the circle logo and the name is not quite right. Perhaps the circle logo should be a bit smaller? And what does it look like in reverse - the heart would be more subtle and SS might stand out.
Got to agree with the other guys here. Whilst I do quite like the shape and look of the logo, it does look very much like a blood donation or heart donor organisation.Just thought I would revive this thread Here is an updated version, I hope is more improved. The type is a edited version of "miso". I need to work on what the tag line would be, maybe just my name?