That's easy! LinkedIn. I had the pleasure of helping launch that brand back in the day. It was such a rewarding and mind blowing experience. I felt like I was contributing to the creation of a digital version of myself. Ever since childhood, I've been known as a "connector", a "collector" and a "re-distributor" when it came to people and networking. It's a great tool for me both personally and professionally. I use LinkedIn every single day and I love it!