Milliken Table Linens is a favorite site that details
instructions for the creation of lovely napkin folding
techniques.  From the Bishop's Mitre to The Bunny Rabbit,
you'll be amazed at the things you can do with some
creative napkin folding
Verse It is the go to site when you're working on invitation
verse ideas.  It's a must see before you order any
invitation.  Also has great details for addressing your
envelopes properly.  Struggling with Thank You's, this is
the site for you!
Top table planner is a great web based online table
planning website.  It enables you to work on your even
seating from any computer.  It allows you to create different
table shapes and sized.  It even generates place cards!  A
simple program for a major task!