Look to the far upper right corner of this page. The link "Sign In" is there though challenging to see with the gray on gray colors. Once you are signed in you will see "New Post" show up in the same area. This will bring up a dialog box with icons to help you load images, video, links and more. Remember to push the red "PUBLISH POST" button before you exit the page. Otherwise your post will go into draft status and sit lonely in the back room.