Editable (jQuery Editable Plugin)
http://arashkarimzadeh.com/index.php/jquery/7-editable-jquery-plugin.html

This looks like the plugin/page that was used in the jQuery Drupal presentations at Drupalcon

Editable (jQuery Editable Plugin) - http://arashkarimzadeh.com/index.php/jquery/7-editable-jquery-plugin.html

Currently it can convert any tag (span, div, p and ...) to text input, password, textarea, drop-down list.

pdf editors,

pdftk

How to Edit PDF Files - Free Tools for Manipulating PDF Documents - http://www.labnol.org/software/edit-pdf-files/10870/

editor de vídeos online do youtube

Google's YouTube editor currently provides minimal editing options for videos, and most importantly does NOT allow video creators to upload still images which can be included in videos.

Youtube編集

The other day YouTube released their video editor which has been getting a lot of press as of late. I tested it out and feel that it is just another reason why YouTube is perhaps the best place for all needs video "housing & editing". Basically, it lets a user upload a video, edit it w/ captions or a soundtrack, and even create a mash-up w/ other videos.

Currently in Beta testing the online editor allows quick and easy edits to your existing You Tube videos