Actor Clint Eastwood speaks to an empty chair while addressing delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (Lynne Sladky - AP) Twitter went ahead and made our day with the creation of a new meme riffing off Clint Eastwood’s Thursday speech at the Republican National Convention. Ladies and gentlemen: Meet #eastwooding.

Eastwood, for those who missed it, spent a large part of his speech talking to an empty chair that played the part of President Obama. The reaction on Twitter, as The Washington Post’s Jen Chaney noted, was nearly instant and almost uniformly perplexed.

Of course, the Twittersphere — the people who brought you Tebowing, planking and owling — soon flooded the social network with pictures of people casting admonishing fingers their own empty chairs. Or glaring at empty chairs. Or having their pets glare at empty chairs.

A Twitter account for @InvisibleObama also sprang up before the convention was even over, delivering snarky one-liners such as “The GOP built me.”

Here’s a look at some of what’s out there:

As part of our continuing coverage of Facebook's IPO, we're looking to chat with the company’s shareholders.

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Facebook has now been officially listed on the Nasdaq, with co-founder Mark Zuckerberg ringing Friday’s symbolic opening bell. Priced at $38 per share, the social network is now worth $104 billion.

Individual investors were largely cut out of the IPO, but anyone can buy shares now that the company is on the market — though probably not anywhere near the opening price.

Stocks opened high Friday morning, as investors anticipated official Facebook trading, set to begin at 11 a.m.

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This story originally appeared in Saturday’s edition of The Washington Post:

Catch Kevin Wu’s latest comedy program on YouTube, and you might think he’s nothing more than a young Asian American talking to a camera in his bedroom. But almost each of his shows command at least 2 million views — rivaling the nightly TV audiences of Jon Stewart and Stephen Colbert.

A disproportionate share of YouTube’s top personalities are minorities, a striking contrast to the most popular shows on mainstream television, where the stars are largely white. These minority-produced, home-grown shows are drawing massive audiences — the top one has 5.2 million subscribers — enough to attract the attention of major advertisers.

On Wu’s videos, ads for Mazda and Toyota pop up. Michelle Phan, a Vietnamese American beauty guru, who ranks 20th among YouTube’s most popular channels, has become a spokeswoman for Lancome. YouTube declined to reveal how much such producers earn, but it says hundreds of them make at least six figures annually.

“A lot of U.S. marketers are leaving minority audiences on the table,” said Seneca Mudd, the director of industry initiatives at the Interactive Advertising Bureau. “Advertisers would ignore that trend at their own peril.”

Facebook announced Monday that it will acquire the photo-sharing software company Instagram for the sum of $1 billion.

The announcement was met with a flurry of responses on social media, including hundreds of photos on Instagram and tens of thousands of shares and likes of the original post by Facebook CEO Mark Zuckerberg.

Read reactions of social media users, plus official statements from both Facebook and Instagram: