After the explosions occurred at the Boston Marathon, many people turned to Facebook and Twitter as the first sources to share and find information on the tragedy. In the aftermath of the deadly bombings that killed three people and wounded more than 140 others (some critically), people are turning to YouTube and Reddit to share their eyewitness accounts of what happened during the race, and in the chaos that followed the bombings.

Here is a video posted to YouTube by runner Jennifer Treacy. This video is from the perspective of an actual marathoner who is running in the race. She is approaching the finish line when suddenly an explosion occurs several yards away from her.

In another YouTube video posted by a spectator, someone is holding the camera among a group of people who are gathered outside a Walgreens store. You hear a woman yell, "Something just blew up!" Suddenly, the second bomb goes off. You hear screaming and a person yells, "Run!" That video, titled "Second Explosion --

The Boston Marathon became the scene of a crime today. Starting at approximately 2:50 p.m., two bombs went off within seconds of each other and caused numerous critical injuries and at least two deaths. CNN reported that at least 132 people were injured.

People immediately took to social media to share what they were seeing as eyewitnesses and to alert the world to what was happening. A Vine video from user "Doug" of one of the explosions going off recorded from live television was being retweeted and shared multiple times.

Boston Globe reporter David Abel tweeted from the scene, "Fine. Reporting. I was 10 feet from the explosion. Shaken up. But not a scratch. Worst thing I ever saw." A video uploaded by YouTube user "FatalitySnow" shows a group of people standing around just as the second bomb goes off.

Other eyewitnesses reported feeling the ground shake during the explosions and seeing lots of blood, smelling smoke and seeing people with missing limbs.

Tents that were originally set

When it comes to keeping children happy and entertained, there's almost no limit to what some parents will do. Doug Smith, a game developer and father of two young daughters, is no exception.

Smith started creating a new iOS video game, and he decided to make it just how he thought his 1-year-old and 3-year-old daughters would like it.

In a posting to Reddit, Smith explained that he wanted to create the game, ChuggaBugga so that both of his daughters would be able to play it. The idea for the theme of the game came from Smith's 3-year-old, who loves both trains and bugs. She even sketched her ideas of what the bugs for the game's characters should look like.

ChuggaBugga is now available to purchase in the iTunes App store. Smith said, "It was a blast to make this game, and [he hopes] it puts smiles on little faces everywhere." Smith may be on to something, because some commenters on iTunes are praising the game. One person wrote, "This app was the best one I have purchased for my