Given below are links to some prayer sites which you may find useful.

Universalis

This website includes readings for the Mass of the day and the Office of Readings:
http://www.universalis.com/n-web.htm

Praying Each Day

A prayer and education site of the De La Salle Brothers in Great Britain
http://www.prayingeachday.org/index.html
The site includes a useful index of prayer sites:
http://www.prayingeachday.org/prayersites.html