Can someone please suggest for me some other good coding apps/sites?

Answer 1

w3schools.com is a very good site

Answer 2

for tutorials and learning its W3schools.com

Answer 3

teamtreehouse.com is a good place to learn. But the videos seam to have a Barney or Blues Clues tone to them that I found a bit wearing. Also a bit expensive... Solo Learn is a great starting point to get rolling.
Linux Academy is not coding, but my new favorite place to learn and get certs for linux sys-admin.