Si vous disposez de peu de temps et d'un budget réduit (référencement d'une page personnelle ou du site d'une association, par exemple), vous pouvez utilisez les services en ligne de référencement gratuit ou bon marché.

France
Ad Hoc Informatique
Impact Solutions
SAM - Le Référenceur
Le Trafic
100 Annonces - Promotion

Allemagne
1st Free Submission Service
Eintragsfritz
Internet-Shop
Klug Suchen
Netpromoter
SubWizard

ROW (Rest Of the World)
Acclaim Web Services
AceBasic
Add It!
Add Me!
Add Your URL
Add-A-Site
AddURL
Announce It!
Announce-A-Site
AnnounceNet
Apollo
Around The World Submissions
Art of Business Web Site Promotion
Atajos-Auto-Registralo
AtlasLink
AutoSubmit
Bates, Bruce
BeSeen
Broadcaster
Brown Bagger Site Submissions
Corporate Internet Designs Inc.
Crossnet Communications
Crystal Corner Web Site Promotions
CyberLinks Promotion Services
Commercial Sites Index Listing Submission
Direct Line Company
Directory Listing Service
DTF IT
Easy-Submit
Entity Global Site Submission
EXPOSE Free Web Site Promotion Center
FreeLinks
Fuzzy
Go Net-Wide
GreekSubmi
Green Eggs Report
HARISSA
Harvest Gatherer
All4one Search Machine
Did-It.com
Easy-Submit
List of 79 Search Engines Where You Can Submit Your Site for Free
Submit-It Gold
Optimizing The Web Site Submissions Process
Register-It
The Central Registry
WebPost96
Promote-It!
The PostMaster--Announce Your URL Everywhere!
AA World Link Station
World Announce Archive
The PostMaster
Promophobia
Promote Assist
Promote Your Site
Promote-It!
Quickie Home Page Registration Service
Register-It!
Roughstockhe top search engines. 
SiteSubmit
Signpost
Site Promoter
Site Promotions
Smart Submit
Submit Blaster
Submit It!
Submit Pro
Submit Site
Submit Spider
Submit This!
Submit.Net
SubmitAll
Submitking
Site See Submission Service
Sitesubmission.com
Swindale Marketing International
Team Submit
Ultimate Exposure 200
URL Guru
Urlsubmit.com
VirtualPROMOTE
Web Announcements
The Web Hitman
Web Merlin
WebPost96
What's New in Europe
What's New on the Internet
What's New Too Submit Page
1 2 3 Register Me
1 Step Web Site Promotions
101 A Internet Promotion Service
123Add-It
540 Webpage Submit