to share files with dropbox in this group:

(refer KP plz) https://www.dropbox.com/referrals/NTE5MjAyNTM5

open account you will get 250M extra, and me too~

install software

it is just like a file folder on your local hd , but is linked online too

then move your files into the "public" folder, and share the link in the group

better put meili or ww or replyview over the link to protect urself