TEFILLOS ONLINE
Tefilos.com
This website is perfect for people on the go who forgot their siddur at home. It contains the entire text of Birkas Hamazon, Mincha, Maariv, Krias Shema, Tehillim, Tefilas Hadrech, and other special tefilos.
You can also sign up for their Tefilla Alert Network, which will send you an email alert on days that special tefilos are traditionally said. Links are included in the email alerts to the appropriate tefilos, the complete text of which can be found on their website.