Compiled by John Collins

INSTALL: Irish Ash Cloud News

WITH THE Icelandic ash cloud potentially disrupting air traffic for the rest of the summer, this free app for Nokia phones is well worth downloading by holiday makers and business travellers. Developed by MobaNode (the outfit that made our national anthem a surprise international hit on Nokia’s app store), Irish Ash Cloud News hooks into the official news feed from the Irish Aviation Authority so you can hear in advance about airport closures. http://bit.ly/c7rnKI

WATCH: Five years of YouTube

YOUTUBE HAS created a dedicated channel to celebrate five years of the video-sharing service where the creators of some of its most popular videos discuss the impact that internet celebrity has had on their lifes. Real-life celebrities such as Conan O’Brien and Vint Cerf also choose their favourite videos of the past five years. www.youtube.com/fiveyear

CELEBRATE: Thirty years of PacMan

IF YOU are of the generation that poured 10p coins into slot machines in darkened backrooms to play PacMan, you probably don’t want to be reminded that the game is 30 years old this year. The anniversary is being marked with a game of human PacMan in the English town of Swindon, but you can relive your youth with this online version. pacmangame.net

READ: The bluffer’s guide to social media

THERE IS an awful lot of guff written about social media, much of it from marketing types who are desperately trying to reinvent themselves. This excellent blog post by Christian Payne cuts through all the fluff and tells you everything you or your business needs to know about Twitter, YouTube et al. http://bit.ly/6qxv5l