I vote YES! It's the best C++ network library available today (ACE without the 'hurt' - I must agree there :-) ) Not only it just works, but it is also very extensible: - multicast was added in march/april (thanks Chris!) - ssl was added (and donated back) in august/september (thanks Indrek!) Both additions went very wel. I've used ASIO in 2 production running projects this year: multicast & finance and a voip app where ASIO handles (secure) Jabber and a high volume proxy-server. The examples are good: copy them and you're off. Documenation is a little cryptic - but maybe that's doxygen for you :) I don't know if this is the formal review expected, no network lib comes close - I feel it fits very well into Boost. Dirk