Henry and Sam are raising money for a good cause, a charity called Annie's Challenge, by walking from their home in the UK to Kathmandu, in Nepal! As they travel they are posting vlogs to tell their supporters about their trip. Here's their very first vlog post. Find out more about their adventures on their website - Kathmandu-it.
Alfie Deyes is one of the UK's top video bloggers on YouTube. His channel is called Pointless Blog and he regularly gets several million views on his vlogs. In this video Alfie answers some questions about Christmas.