A link list of Tom Hiddleston interviews on Youtube : Lately, I've been watching quite a lot of interviews with Tom Hiddleston on Youtube.
Here is a list of some longer interviews:

Popcorn Taxi part 1
[url]link[/url]

Popcorn Taxi part 2
[url]link[/url]

Time talks Madrid
[url]link[/url]

Conversations for a cause Nerd HQ
[url]link[/url]

Studio Q Radio interview:
[url]link[/url]

Tom Hiddleston & Chris Hemsworth, Thor - the dark world Interview
[url]link[/url]

Two rather funny interviews:
Smosh Prank interview
[url]link[/url]

Chatty man
[url]link[/url]
this one is short, yet interesting I think:

BAFTA - big questions
[url] link[/url]

I guess some of these are also in the video section. And of course, if you look for "interview" and "Tom Hiddleston" on youtube, you will find many more interviews
with him.