zoho.com
zoho writer--just like microsoft word, but 1-its free 2.-all your work is saved online 3.-people from all over the world (or county) can read/contribute/comment on your work.
zoho show--just like powerpoint
zoho sheet--just like excel
zoho meeting--connect with other users and they can see your screen as you show them a powerpoint, websites, documents, or anything else on your screen. combine with skype for meeting or distance tutoring.