Tips
Snippets
When using the snippets plugin it might come in handy to have both php and html (or other combinations) snippets together. When you are on a php hilight mode, you only have access to php snippets (through tab completion).
In order to override that, create your own php.xml file under ~/.gnome2/gedit/snippets and copy the contents of /usr/share/gedit-2/plugins/snippets/html.xml into it.
If you add another php snippets they’ll go into that same php.xml that you created so it might be first to add some snippet before creating the file. That way the basic structure will be created for you.
Plugins
List of plugins i use on gedit, except for those included with gedit itself, or in the gedit-plugins package. Place them in ~/.gnome2/gedit/plugins
Reference links
http://simplesideias.com.br/lista-de-plugins-para-o-gedit/ (Portuguese)
http://joselo.wordpress.com/2007/03/28/textmate-en-linux/ (Spanish)
Advanced Editing
This plugin provides advanced text editing capabilities for gedit.
http://live.gnome.org/Gedit/AdvancedEditingPlugin
Autocomplete
Select from a list of Autocomplete options
http://sourceforge.net/projects/gedit-autocomp
Personal change
Since this plugin shortcut key is the same as the shortcut key used for the built-in snippets plugin (Tab key) I made a small change in order to avoid conflicting situations.
On line 376 of autocomplete.py I changed the key from Tab to Return in order to make autocompletion possible with the Return key, and leaving Tab free for the snippets plugin.
Class Browser
This plugin provides a generic Class Browser for gedit, located in the side pane. It currently supports a wide range of languages through the use of exuberant ctags, as well as a specialised python parser.
http://www.stambouliote.de/projects/gedit_plugins.html
Snap Open
Opens files by regex.
http://www.upperbound.net/upperbound/show/SnapOpen+plugin+for+Gedit
Tab Converter
Converts tabulator spaces to whitespace, and vice versa.
http://www.stambouliote.de/projects/gedit_plugins.html
Quick Highlight View
I've added some snippets that allow me to autocomplete the Django template language, and one thing that annoys me is that due to the way syntax is automatically recognized, when i start an .html file and start the file with a tag like {% extends %}, as soon as i save the file the syntax is changed to Octave, even if i have a thousand lines of HTML in the rest of the file. I've been around this with Gedit developers and because of the way syntax is recognized, this can't be changed.
Therefore, this plugin is a blessing. It's a lot better to have this than clicking through the menus to get my syntax back to HTML.
http://svn.simplesideias.com.br/general/gedit/plugins/quickhighlightmode/
Reopen Tabs
Reopens the tabs you had opened last time.
http://code.google.com/p/reopen-tabs-gedit-plugin/
PO Editor
A plugin which helps the editing of .po files.
http://sourceforge.net/projects/gedit-pomode/