Here's how I think it all went down:

• I posted this cartoon about employers blocking Facebook in the workplace.
• I thought Shel Holtz would like it for his Stop Blocking blog.
• He did, and posted it there.
• Beth Kanter saw the cartoon and blogged about both it and Stop Blocking.
• So as not to draw on Shel's or my bandwidth, she posted the cartoon (which is Creative Commonsed up the wazoo, so all is kosher) to Flickr so she could link to it there, and tagged it "socialsignal".
• We have a Flickr photostrip on the front page of this site, which randomly selects Flickr photos tagged, you guessed it, "socialsignal".

And tonight, this is what I saw (click to enlarge, and look in the lower right-hand corner):

And the circle of life continues. 

If you're like Alex, you're already in Las Vegas at the Community 2.0 conference, and good on you. The rest of us aren't bitter about your hot, sunny days and your swimming pools and your rubbing elbows with fellow leaders in the social web. Not in the least.

Why? Because if we can't go to Community 2.0, Community 2.0 will go to us. Here's how they're expanding participation beyond the conference rooms, hallways and luxurious spa treatments rigorous breakout sessions:

• The Future of Communities, a companion blog to the conference.
• A discussion forum.
• A Gabbly chat page, for live chats.
• A dedicated IRC chat channel.
• The tag community2.0, for aggregating content on Technorati, photos on Flickr and (thanks, Lou!) bookmarks on del.icio.us.