Technically Incorrect: To celebrate Martin Luther King Jr. Day, Google uses the work of a first-time doodle artist to depict the Selma march. Apple, too, changes its home page in homage.
Online gallery Computer Virus Catalog sees artists from around the world interpreting and visualising the most famous viruses to hit our hard drives.
Sega also teases a new game announcement on Twitter.
Commentary: Thirty years ago, seven astronauts lost their lives in front of a global TV audience, including millions of schoolchildren. The event affected one of those kids in profound and lasting ways.
Apple has added an LGBT section to its App Store that showcases apps, books, movies, TV shows and podcasts to commemorate the 1969 Stonewall riots.
Apple is sending members of the press 100 free songs, as well as a paper version of its "Decade of iTunes" timeline.
To commemorate a quarter century of its Adobe Originals type program, a font free for all.
Apple wasn't even aware of the competition which saw a statue unveiled to commemorate its late CEO Steve Jobs.
Evil Mad Scientist takes on a DIY classic Lego Space flight jacket to commemorate years of service in the fictional astronaut corps.
Google and Crave's Eric Mack commemorate the 50th anniversary of the iconic civil rights leader's historic speech on the National Mall.