Well I just typed a response to this and it disappeared so you may receive twice !
I havent been on the site for a while, however it always amazes me when I check back how there is always something relevant for me at this time!
This article is exactly where I am at right now. Amazing!
After a a few challenges I wondered what was going on and why I found these challenges so difficult to complete , then just the other day I came across the word "Exposure" staring right at me !!