Tags

  • * Simple TagsIncludes Tag Cloud and many admin options and customisations.

Editor

  • * TinyMCE Advanced
    This plugin adds 15 plugins to TinyMCE: Advanced hr, Advanced Image, Advanced Link, Context Menu, Emotions (Smilies), Date and Time, IESpell, Layer, Nonbreaking, Print, Search and Replace, Style, Table, Visual Characters and XHTML Extras.
  • WP Super Edit (very similar to ‘TinyMCE Advanced’)
  • * AddQuicktag
    This plugin makes it easy to add Quicktags to the editor.
  • * Co-Authors
    Allows multiple authors to be associated with a post. Co-authored posts appear on a co-author’s posts page and feed. Additionally, co-authors may edit the posts they are associated with, and co-authors who are contributors may only edit posts if they have not been published (as is usual).

Spell Checking

  • Corrector (shows, but finds no wrong words.)

    Until WordPress 2.3.x ‘Corrector’ was the only plugin left which could do spell checking. Recently there is no Spellchecker left which is available or usuable with WordPress. This a great step backwards, which really is a pity.