The document discusses several popular WordPress plugins:
- SEO Smart Links allows automatic linking within posts and categories for SEO purposes.
- Google XML Sitemaps is easy to use and great for SEO by generating an XML sitemap.
- Yet Another Related Posts Plugin improves both SEO and the user experience by showing related content.
- Redirection is useful for tracking clicks and changing link destinations.
- W3 Total Cache and WP Super Cache both improve site performance through caching but W3 Total Cache has more options.
- Google Analytics provides analytics tracking and is easy to use with regular updates.
- Tweeted allows embedding tweets from Twitter. The plugin authors