Allows a user to add dublin core metadata (of their choice) to a wordpress post.
Implements some Dublin Core metadata elements for WordPress posts.
SEOPress is a simple, fast and powerful SEO plugin for WordPress
wp-RDFa brings the semantic Web to WordPress
It allows to manage a publication repository and exposes metadata in order to be indexed by Google Scholar
Search Engine Optimization with automatic generation
Inserts OWMS metadata as meta tags into all post types. Provides options screen in admin area for setting default values.