Before moving to one of the most useful features of JustWorship.com, please note their Copyright Disclaimer. Once you're aware that their substantial library of worship song tabs (lyrics and chords) can't just be used for any purpose you choose, continue to:
www.justworship.com/worshipsongs.html
There are also a good number of articles, Hebrew and Greek word studies related to worship and praise, and a page of links to more worship sites. See all that is available at:
www.justworship.com