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The Washington Post launched a new app Tuesday aimed at tracking mentions of presidential candidates on Twitter.

@MentionMachine was developed exclusively for the newspaper and was launched in conjunction with Tuesday's Iowa Caucus, the official start of primary season for the 2012 Presidential Election. The app uses Twitter's streaming API while also tracking mentions in the traditional media.

The launch of @MentionMachine is telling, in that it formally adds "social media success" to polling data, fundraising totals, ad spending and endorsements as ways to measure how well, or how poorly, a campaign is doing. For those keeping score, Ron Paul had the most mentions in the 24 hours preceding this writing, with 44,900 tweets.

Today, BBC.com has launched a U.S. election hub at BBC.com/USelection. It opens with an introduction to the Republican candidates along with a few topical analysis posts. It's a redirect to the BBC.co.uk topic page, so it's the same coverage that the British audience gets.

As the election gears up, the site's content will include articles, video series and interactive maps and polls. BBC.com averages 17.4 million unique visitors per month from the U.S., about a third of the site's global audience. Big news months, such as in May, when Osama bin Laden was killed, drew more than 19 million readers.

Watching the elections in Egypt this week and as one of the few Americans who are planning on voting next week in our off-year election, I am reminded of one of my favorite science fiction stories by the master Isaac Asimov called "Franchise. The story was written in the 1950s and takes place ironically in 2008 on election day. Computers and exiting polling have gotten so accurate in predicting the winner that only one person is needed to actually cast their vote.

"Technology is the equalizer," Fareed Zein told Fast Company. Zein has built the Sudan Vote Monitor as a platform people can use to monitor and cover next month's independence vote in that northeastern African country.

To the south and east, another technological experiment has risen, that one to commemorate the fait accompli of the Rwandan genocide. The Genocide Archive of Rwanda, hosted by the Kigali Genocide Memorial, will document the 100 days and 800,000 lives lost in the brutality of 1994.

In a world where crowdsourcing has become a mainstay of politics, a new site from the Democratic National Committee is taking the idea one step further and asking voters to find damaging videos of opposing lawmakers and candidates.

The Accountability Project is pretty simple: you can upload and view videos, or track down Republican candidate events. There's no voting or comments; it's essentially a platform for videos to go viral. So far, uploads mostly consist of tepid footage of conservatives criticizing Democrats. But when compared to other political crowdsourcing projects, the site stands out as one of the more potentially disruptive ideas in this midterm election.

The OpenID Foundation has announced nominations and upcoming elections for six open community board seats.

This year marks the Foundation's second election; last year, Snorri Giorgetti, Nat Sakimura, Chris Messina, David Recordon, Eric Sachs, Scott Kveton and Brian Kissel were elected. Of the current community board members, Messina and Sakimura were elected to two-year terms. Kveton has indicated he will not serve another term.

The Twitter firehose is glutted with retweets, hashtags, and information of every possible bias and contradition surrounding one topic: The recent election in Iran and supposed fraud in tallying votes for the losing candidate, Mir-Hossein Mousavi.

In the aftermath of the election, during which a (some say statistically improbable landslide) victory for Mahmoud Ahmadinejad was announced, the social media buzz grew into a roar as a meme began to circulate: Where Is My Vote. A website, several Facebook pages, and now thousands of tweets have ensured few social web users have not yet heard of the controversy and the Iranian government's response of censorship.

This week the ReadWriteWeb team was in force at the Web 2.0 Summit, an annual event that covers the state of the Web industry. This year's theme was 'Web meets world'. ReadWriteWeb had access to video coverage of the event, via TechWeb (one of the producers of the event along with O'Reilly Media). We've got a widget below that has links to all of the main sessions, with a few more probably to come over the next day or so. In this week's Weekly Wrapup, our regular newsletter, we provide a summary of our posts and video.