Alfabetische woordenlijst U
- UA
- UBE
- UMTS
- Undeliverable
- Unfriend
- Unicode Transformation Format
- Uniform Resource Locator
- Unique Value Proposition (UVP)
- Universal Search
- Unix User Network
- Unsolicited Bulk E-mail
- URL
- URL Rewriting
- URLS
- Usability
- Usenet
- User agent
- User generated content
- UTF