This is a popular post on other boards, so let's give it a try. Tell us who your vendors are, any reviews you may have and a ballpark cost (if you are comfortable with that, if not, just don't include it).
Ceremony
Ceremony Site
Officiant
Ceremony Music
Reception
Reception Site
Caterer
Chair Covers/Linens
Bakery
DJ
Favors
Lighting
Other
Rehearsal Dinner
Limo
Florist
DOC
Miscellaneous equipment
Photography
Photographer
Videographer
Photobooth
Picture Locations
Engagement Pictures
Beauty / Attire
Rings
Wedding dress
Alterations
Tuxes
Bridesmaid Dresses
Hair
Makeup
Paper
Save the Dates
Invites
Programs/Menus
Anything else I may have forgotten. Thanks.