Facebook.com and Notes

Can someone please tell me how to use this website? All I know is that friends keep getting added. Does it work like an email or messenger or WHAT!!!!
On another note, I just realized that blogger has a new icon for videos. yay..no longer have to upload to youtube.com.
Yet another note, I received a two-week work assignment which starts tomorrow so have been using the weekend to shop for some career wear. Shopping has to be done fast, heat in unbearable, 110 degrees F!!! Previous company allowed jeans and t-shirts. I'll wear something professional tomorrow and see what the rest are wearing. Hopefully can go back to jeans and tee. hehe.
And yet another note, experienced minor, minor earthquakes yesterday and today. What is happening!
One final note, went for an hour of fitness class using barbells and dumbbells. Spent the weekend moaning and groaning because of severe muscle aches.