You can browse the table of contents for today's newspaper.
Click on the digital image to enlarge the text. Click on the image a second time to reduce the text size.
You can also use the Search tab to search for a specific subject. You can search the current issue or select "All issues" from the dropdown menu. "All issues" includes the archive of 3 weeks.
Lastly, you can also search for a specific issue. Click the "Back Issues" button to select an issue from the past 3 weeks.
You can use the controls at the top to change the image appearance and to choose output options.
Check out the ft.com site for available apps including mobile apps.