Catholic Calendar. This also has daily readings (if you click on the day/descriptive text) and other stuff. (has lots of small graphical icons, though - might take awhile to load).
Todays readings, for example:
First Reading: Hosea 11:1, 3-4, 8-9
Responsorial Psalm: Isaiah 12:2-3, 4, 5-6
Second Reading: Ephesians 3:8-12, 14-19
Gospel: John 19:31-37
(the scripture readings themselves - links - are broken, but you can find an online douhey-rheims (I know I spelled that wrong) Bible.
Nobody said:
Do all catholics have the same readings every week? if so thats kinda cool....
One thing of interest that I've noticed - Catholic and Lutheran churches seem to have the same readings each week. (maybe a minute difference here and there when one uses text the other doesn't have, but so far, from the 3 or so services I've seen (Lutheran and Catholic) on the same day, it's been the same. I also took a look at other churches, and they're close enough - within a few weeks of matching the date/reading. I guess it depends on which church you go to).