As the Occupy movement springs back to life on “May Day” to bring the plight of the “99 percent” to the attention of, well, the “99 percent,” some labor unions are doing their part, even paying Twitter to trend an anti-corporate hashtag.

Irony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterIt’s true! Trending right now (worldwide!) is the hashtag “#CorporateGreed.” However, according to Twitter, the tag is “promoted.”

“Promoted” tags “can cost up to an estimated $120,000 per day,” according to the staff at Twitchy. So rather than being an organic trending term, it’s no more than a paid advertisement.

Irony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterAnd a Tweet sent out last night by the Communications Workers of America union tells us who’s paying to promote the tag:

Irony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterSit back for a minute and soak in all the levels or irony: a union paid in excess off $100,000 for a hashtag decrying “corporate greed” and posted it to a network that can only be accessed via a computer, phone, iPad, and the like.

Of course, without missing a beat, the conservative Twittersphere unleashed an unforgiving barrage of snark:

Irony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterIrony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterIrony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterBut it was the Heritage Foundation’s Lachlan Markay who really tore into the CWA for its total lack of self-awareness and its anti-corporate ideology:

Irony Watch: Union Pays Top Dollar to Trend Anti Corporate Hashtag on TwitterClick here for more Twitter reaction from the folks over at Twitchy.

This story has been updated.