The New American Bible Online is recommend for Catholics.  It is the same version used for the Mass readings.  Unfortunately the current online copy does not allow you to search for a particular phase or passage.  Bible Gateway and many of the searchable sites offer several translations.  It is recommended that Catholics use the New American Standard (NASB) on the Internet. 

Enter Passage searches in this format:  Book: ChapterFirst Verse-Ending Verse
Example:   Matthew 1:1-5