Have you noticed the #spon hashtag on Twitter? Has it confused you? The first time I saw it, I did a double take but as soon as I read the ad I was able to deduce that it was an ad and that the twitter user was doing his part in disclosing to the general public that it was an ad.
So what's a #spon hastag again? It's a tweet which is or has an advertisement.
This new hashtag was in response to nwe guidelines released by WOMMA, the word of Mouth Marketing Associaton in response to the Federal Trade Commission's call for bloggers to be more explicit in disclosing their endorsement of a product in exchange for compensation.
I searched on ""#spon" and found a lot of tweets now contain this new hashtag which goes to prove that new taxonomies and trends are easily adopted on social networks; well, especially on Twitter.