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This year you really should schedule your Happy New Year's Eve SMS, social media, and email messages before the networks become clogged with traffic.

Today, Friday, Sage Ireland is encouraging its social media followers and customers to send a tweet with the hashtag #SageXmasGiving. For every tweet published that includes the hashtag, Sage will donate €1 to St. Vincent de Paul, the largest charitable organisation in Ireland.

Usually start-up pitches are weeks if not months in the making, but not this one. Entrepreneur turned investor Niall Harbison is inviting start-ups to pitch their ideas in 140 characters or less for the chance to secure vital initial funding.

Every time you tweet, post a Facebook status update or pin something on Pinterest, you help contribute to that respective company's revenue. But just how much? Is it possible to express, in terms of revenue, the value of a single tweet, for example?

Next month marks the 100th anniversary of the sinking of Titanic - then the world's largest passenger ship. To commemorate, a new Twitter account will 'live'-tweet her disastrous maiden journey, narrated in first-person as if coming directly from those involved.

Can Twitter's yearly trends and Google Zeitgeist really tell us about the past year?

Twitter has just announced a major platform design overhaul, simplifying elements and insuring consistency across twitter.com, TweetDeck, and mobile apps. They'll be rolling out the new design over the "next few weeks" but here's how to get it now.

Klout, the social influence measuring tool, has analysed a week's worth of retweet data and unsurprisingly concluded that the lifespan of a tweet is significantly longer for users with higher Klout scores - up to 67 times longer.

Twitter is now forcing all links posted on the social network to redirect to its t.co service rather than link directly to external websites.

Irish Rail today took delivery of a new set trains at Dublin Port, here's what it looked like.

British climber and mountain guide Kenton Cool has sent the first ever tweet from the summit of Mount Everest, the world's highest mountain. Cool reached the summit yesterday for the ninth time and sent the tweet from a sponsored Samsung Galaxy S II smartphone.

According to Google’s Realtime search results the greatest number of tweets about Earth Hour from Irish users came at exactly 8:30pm, just when the event started in Ireland. It then took another hour before the massive spike of #earthhour tweets subsided.

Last week we used the power of Google Search to predict the outcome of the 2011 Irish General Election. Now, on the eve of the election, we turn to Twitter, not to predict results, but to provide some insightful analysis on political party and political party leader performances during the last official twenty-four hours of their campaign.

Taoiseach Brian Cowen will step down as leader of the Fianna Fail party on Sunday, if a tweet from Fianna Fáil Cllr. Aengus O’Rourke is to be believed.