On a whim, I posted this status update at my Facebook account yesterday:In case you can't see the image, my status said: "Ivan is writing a Web 2.0 + Young Adult services primer for librarians."Within minutes, Isaak commented: "Need any help?"Soon followed by another Facebook contact Kelvin, wrote: "Interesting - will you be making it available on your blog?"Then today, Ivy commented: "I thought you are finally writing your own book! I'm looking forward to reading it."Telling the world about...