It may need a bit more work from Google's branding department, but the company's first ever Hangout-a-thon is all set to take place later today, aiming to raise donations for charitable causes working around the globe. After the consumerist excess of Black Friday and Cyber Monday, today's been designated a Giving Tuesday, a day for charities to collaborate and remind everyone of the need for donations to good causes. Google's participating through a dedicated Hangout, which will feature celebrities like Jennifer Garner, yoga lessons from the Africa Yoga Project, and Mountain View's shortlist of charities to contribute to. It's like a telethon in your browser.