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Surely you saw the #OccupyWallStreet pepper-spraying cop Internet meme. And perhaps since then you've been inspired to create your own Internet meme. If so, then take a hint from the "Hey Girl" Ryan Gosling Internet meme, which features a picture of the actor alongside an intellectual pick-up line. It's been going strong since December 2010, and it's not disappearing anytime soon.

Ryan Gosling Feminist, one of the smarter iterations of this meme was created by Danielle Henderson, a graduate student in the University of Wisconsin Madison's women and gender studies program. We asked her a few questions about her take on the popularity of "Hey Girl." And just days after we did that, the Internet produced Museum Hey Girl, for the artier among us. Hey Girl Happy Hannukah appeared on December 20, the first day of the holiday.

It's Election Day and people across the U.S. are making their way to the polls to cast their hopefully well-informed ballots. If you're one of the many looking for some last minute information on your candidates this morning, beware your source, as much of those grassroots-looking Tweets may actually just be astroturf.

According to the Truthy project, a research effort from Indiana University, much of what you're seeing on Twitter these days consists of "political smear campaigns, astroturfing, and other social pollution."

The social shopping site Blippy made a big splash in the tech blogosphere earlier this week with an unlikely feature: the most amazing 404 error page anybody had seen in awhile. The page features a rainbow and a cartoon unicorn who, when clicked, begins reenacting the now famous "Double Rainbow" meme as the rainbow on the screen expands into a double - and yes, almost triple - rainbow.

It might seem counter-intuitive to put so much effort into the page on your site that you want visitors to see the least, but a good 404 page can be a critical component of your site's user experience, so long as a few general pointers are followed.

Techmeme founder Gabe Rivera just launched Mediagazer, a new memetracker for topics related to media news. This new site will be based on the same technology as Techmeme, memeorandum, the gossip site WeSmich and the baseball memetracker Ballbug. The content on Mediagazer will be edited by Megan McCarthy.

Dramatic headlines cried out overnight that RickRolling was dead. The original Rick Astley video with more than 30 million views has been pulled from YouTube due to copyright violation. In fact, however, YouTube appears to have simply moved the video to Vevo, its music video website in partnership with Universal Music Group, Sony Music Entertainment and EMI.

"Never Going to Give You Up" is published under the RCA record label, which is a property of Sony. Originating on outlaw web forum 4chan and leading to a Macy's Thanksgiving Day Parade appearance by Astley 20 years after the song was released, RickRolling isn't dead - it's just safe now, in the official copyright friendly section of YouTube.

Update: A YouTube spokesperson has now said that pulling the video was done on mistake.

Do you remember YouTube sensations like Otters Holding Hands, David After Dentist or Dramatic Hamster? Of course you do. You probably Dugg, Tweeted and ClikBalled them until the mash-ups came out. From there, you probably repeated the process until a full-fledged meme was afoot. In the same way that it takes a village to raise a child, it takes a mob to raise a meme. In the past, YouTube's Partner Program has worked with prolific community stars to help them monetize. As of this morning, Google announced it is extending its program to incorporate its one-hit wonders.

For a service that simply takes 140 characters of input and then blasts them out in front of potentially hundreds of thousands of readers at a time, there has been a lot of work by people and businesses to figure out the best way to re-interpret and re-group Twitter posts in to meaningful categories, trends and threads.

Two common ways that have developed are link tracking and meme tracking. In the first case, it's fairly simple - just take all the URLs posted on Twitter, uncompress them if necessary, add up the uniques, and sort them by popularity. But today we are going to focus on the latter case, services that look for a specific keyword, topic, or hashtag (all falling under the fuzzy category of meme or viral idea) and cluster related tweets together.

According to the latest data from Compete, the '25 Random Things About Me' meme has not only given us access to a plethora of random facts about people we barely know, but this digital fad has also been good for Facebook. According to the latest data from Compete, four times more people than usual visited the 'Notes' section on Facebook in January. Compete estimates that close to 20 million users used 'Notes' in January, while only about 4 million used it in October 2008.