My view is that economic realities are a bigger force then ideology. Convincing local businesses to accept gold and silver is the hard "ideological" route, with very slim chances of success. Few businesses will agree to accept, few buyers will adopt, and metal will usually hit a dead stop and go out of circulation.
Making acceptance of gold and silver an economically preferred alternative is the best course of action. Activists need to get their act together, and form a proper, government registered payment system (Money Services Business) offering the same convenience, and ease of access as traditional payment systems. Such a system will face resistance, but there is where the political clout of libertarians can come in.
I know I'm missing the big picture of organized resistance in government against initaitves such as e-gold and liberty dollar, but I also do believe that there is merit in the actual action taken against them. e-gold, was, as a matter of fact, a conduit for money laundering, and liberty dollar actually does appear, to simple minded folks, as an "alternative" to government dollar. If a gold backed payment system is established by cloosing all the potential loop holes, I see no reason why it will not succeed. Even if rest of majority americans are not liberatarians, this country is still the best place to launch a business that can operate in compliance with the letter and spirit of all laws and regulations. I am really surprised why its not being done.
Even indonesian have taken the lead from americans here. They have a 30% non-profit mint which is dishing out gold dinars the weight of 1/10 troy ounce, at a remarkably low premium of 7% !! Compare that to 1/10 troy ounce maples and eagles.
A public enterprise featuring its own minting and payment system offering modern facilities of electronic exchange, and taking tax handling burden off of the end user (small businesses) is the only serious way in which I see any meaningful progress being made here. Private, local evangelism of the concept to small businesses without any infrastructure backing, is far too limited in its ability to make a difference.