etc_link_to
Kind of <txp:link_to_prev/next/first/last/nth /> tag that respects any sort order and can generate more elaborated links.
etc_url
Create or modify a Textpattern URL.
Keywords: link, url, custom
Auto-linked paragraphs
Seen on the Forum.
Keywords: link, inline
XPath sandbox
Test your XPath skills.
etc_preview
Live comments preview.
Keywords: comment, live, preview
Deep linking
Automatic tooltips.
Keywords: deep, link, auto