Just in case you missed it (I did), the Small Business Administration announced in April that the week of May 12-16 is National Small Business Week. The President made a national proclamation Friday May 9 which started with, "Small businesses represent an ideal at the heart of our Nation's promise -- that with ingenuity and hard work, anyone can build a better life. They are also the lifeblood of our economy, employing half of our country's workforce and creating nearly two out of every three new American jobs. During National Small Business Week, we renew our commitment to helping these vital enterprises thrive."
The "celebrations" will include live events in San Francisco, Kansas City, Boston and Washington, DC (Monday - Thursday) and some web seminars and simulcast of the live events. You can still register for some of the in person events if you are in one of the cities above and registration for the web events was still open when I checked.
You can find all the current information at the National Small Business Week website.