Do you put your web address on just about everything?  Ok, you do. Leave out the www part, it is not necessary, makes your address harder to remember and adds clutter. Here is an example: eMarketingAssociation.com, keep in mind that if you are writing your address on an email or HTML page it may be necessary to include the www, to make the link live, but it is unnecessary on business cards, packaging, brochures, catalogs, TV commercials, radio, stationary, etc., anywhere there is not a live link.