Similar to タグクラウド

Open Archives Initiative Protocol for Metadata Harvesting

Extended file attributes

MARC standards

XML schema

Dublin Core

Data dictionary

Transclusion

Triplestore

Namespace

Hashtag

Document type declaration

Meta element

Media type

Resource Description Framework

Template:Internet-stub

2345.com

37signals

.ac

Acid1

Acid3

Adam4Adam

AdBlock

.ae

.aero