Since i had to compile this for my own needs,
i thought to share it also for some other's benefit.

As criteria for the inclusion/selection
i have taken "tags" to mean,

1.) the ability to make & assign UNLIMITED

KEYWORDS aka. LABELS aka. CATEGORIES aka. METADATA aka. FIELDS aka. ATTRIBUTES.


2.) the ability to then comfortably AUTOMATIC FILTER
ones entire database to one or more such terms assigned.


3.) with "advanced" to mean, to have one or more of the abilities for:

- hierarchical tags / tag groups

- bulk tag assigning / changing

- bulk tag import / export

- automatic tagging

- tag clouds

- tag suggestions

- tag typing completion / from menu selection



@So =here #we go!



___________________________

ADVANCED Tagging System
___________________________



WINDOWS
-------------

Task Unifier Pro (http://www.taskunifier.com/pages/pro

Evernote (http://evernote.com/

CintaNotes (http://cintanotes.com/

My Life Organized (http://www.mylifeorganized.net/

Connected Text (http://www.connectedtext.com/

RightNote (http://bauerapps.com/

TreeDBNotes (http://www.mytreedb.com

AML Pages (http://www.amlpages.com/

MyInfo (http://www.milenix.com

Memomaster (english, http://www.jbsoftware.org german, http://www.jbsoftware.de/memomaster

Ultra Recall Pro (http://www.kinook.com/UltraRecall

Zoot (http://www.zootsoftware.com

Infoqube (http://www.infoqube.biz

InfoSelect (http://www.miclog.com

myBase (http://www.wjjsoft.com/mybase_screenshots.html

TreePad Business Edition (http://www.treepad.com/treepadbiz

TreeProjects (http://personaldatabase.org/

RedNotebook (http://rednotebook.sourceforge.net/index.html

Taglocity for Outlook (http://www.taglocity.com/

ClearContext for Outlook (https://www.clearcontext.com/pro/

Personal Knowbase (http://www.bitsmithsoft.com/





MAC
---------

Evernote (http://evernote.com/

Tinderbox (http://www.eastgate.com/Tinderbox/
Curio (http://www.zengobi.com/products/curio/
DevonThink Pro (http://blog.devontechnologies.com/2008/08/tuesday-tip-using-devonthink-pro-as-a-web-browser/
Together 3 (http://reinventedsoftware.com/together/

OmniOutliner (http://www.omnigroup.com/omnioutliner/

Circus Ponies Notebook (http://www.circusponies.com/




LINUX
---------

Task Unifier Pro (http://www.taskunifier.com/pages/pro




____________________

BASIC Tagging System
_____________________


WINDOWS
-------------

EssentialPIM Pro (http://www.essentialpim.com

TodoList (http://www.abstractspoon.com

ResophNotes (http://www.resoph.com

Notezilla (http://www.conceptworld.com/Notezilla

Total Organizer (http://www.konradp.com/products/organizer/

TreeLine (http://treeline.bellz.org/scrnsht.html

GoldenSection Notes (http://www.tgslabs.com/en/gsnotes/

MyNotesKeeper (http://mynoteskeeper.com/

Techno Notes Manager (http://www.technonotes.com/

StudyBudy (http://www.sbuddy.co.uk/

Incollector (http://www.incollector.devnull.pl/

NoteMaster (http://www.computtrax.com/notemaster/en/index.html

VIP Task Manager Professional (http://www.taskmanagementsoft.com/products/taskmanagerpro/

ListPro (http://www.iliumsoft.com/listpro/windows

SmartDiary (http://www.sdiary.com

TaskMerlin (http://www.taskmerlin.com/compare.aspx

VueMinder Ultimate (http://www.vueminder.com/products/vueminder/help/contacteditor.html#Custom_Data

Desktop TODO (http://www.desktoptodo.com/p/features.html

Conqu (http://conqu.com/

Data Guardian (http://www.koingosw.com/products/dataguardian.php

Data Recall (http://www.ignyte.com/product-data-recall-infokeep.html

Symphytum (http://giowisys.com/products/symphytum

WowBase (http://softconstructors.com/en/applications/wowbase/index.html

Remember The Milk (http://www.rememberthemilk.com/tour/

NoteExpress 2 (http://www.noteexpress.net

TheBrain (http://www.thebrain.com/products/thebrain/download/

Xmind (http://www.xmind.net/features/

Tobu (http://tobu.lightbird.net/

Scrivener (http://www.literatureandlatte.com

Swift To-Do List Ultimate (http://www.dextronet.com/swift-to-do-list-software

Agenda At Once (http://www.agendaatonce.com/

TaskAngel (http://www.mypocketsoft.com/taskangel/default.aspx

uTodo & uOrganized (http://www.veetosoft.com/

ActionOutline (http://www.actionoutline.com/

AceText (http://www.acetext.com/

Microsoft OneNote (http://www.onenote.com/

MindRaider (http://mindraider.sourceforge.net/

NoteCase Pro (http://www.virtual-sky.com/

Noteliner (http://www.noteliner.org/i/Main.html

NotesBrowser (http://www.notesbrowser.com/en/screenshots_notesbrowser.html

Outline 4D (http://www.screenplay.com/p-77-outline-4d.aspx

SurfuLater (http://www.surfulater.com/

PerfectJournal (http://www.perfectjournal.com/

Redhaven Outline (http://www.rynelf.com/redhaven/video-tutorials

Snippet Center (http://www.ograhl.com/en/snippetcenter/screenshots.php

Whizfolders (http://www.whizfolders.com/

Writer's Blocks (http://www.writersblocks.com/

Zettelkasten (http://zettelkasten.danielluedecke.de/

ZM Zettelkasten (http://www.cc-c.de/english/download/zettelkasten.php



MAC
---------

EagleFiler (http://c-command.com/eaglefiler/

Soho Notes (http://www.chronosnet.com/Products/sohonotes.html

MetaNota Pro (http://www.metanota.com/

Noted (http://blankdesk.com/noted

SimpleNote (http://simplenote.com/
Journler (http://journler.com/features/screenshots/journler-web.png + http://journler.com/
Soho Notes (http://www.chronosnet.com/Products/sohonotes.html#bookmarklet
DevonAgent (http://www.devontechnologies.com/products/devonagent/overview.html
DevonNotes (http://www.devontechnologies.com/products/devonnote.html
MyStuffPro (http://www.mindersoftworks.com/products/mystuff/
Things (http://culturedcode.com/things/

TapForms (Mac/Ipad http://www.tapforms.com/

Caboodle (MAC/Ipad http://www.dejal.com/caboodle/ )

Remember The Milk (http://www.rememberthemilk.com/tour/

TaskSurfer (http://www.frostydogs.com/tasksurfer/

Papers (http://www.papersapp.com/mac/

Symphytum (http://giowisys.com/products/symphytum

Xmind (http://www.xmind.net/features/

Scrivener (http://www.literatureandlatte.com



LINUX
---------

Basket Notes (http://basket.kde.org/index.php

Remember The Milk (http://www.rememberthemilk.com/tour/

GDT Free (http://gtd-free.sourceforge.net/

Symphytum (http://giowisys.com/products/symphytum

Xmind (http://www.xmind.net/features/




****************************

SPECIAL IDEA:

another "revolutionary" idea would be
to just manually include keywords (@ # + =)
into ANY title field of ANY program,
and then just use the usually fast regular search pane,
to each time find your desired notes.
Thus, if the search would be instant enough,
and if a search history / saved terms could be quick access ideally too,
It would provide the extreme benefit of also having
EVERY single content word as an automatic de-facto "keyword"
included in the search results too as a quasi less exact, but bonus "related hits" results,
that would appear listed after your (@ # + =) tagging signs.

****************************

Feel free to add any other outliners
or special secret useful tips you know.

Greetings!

Thanks for the list! I've never heard of some of the Mac apps, yet.

Actually, I prefer your other idea: I think it's future-proof to add a glyph to keywords and put the resulting "#hashtag" (or "@keyword" or "$whatever") into the title or the content precisely because you don't have to rely on arbitrary file metadata, or worse, be locked-in by a program's tagging feature.

What's the purpose you collected these apps for by the way?

Tags along with auto-suggestion prevent issues arising from misspelling words. So if you enter #aeroplain, #airplane and #aeroplane in different articles and search for #aeroplane you won't find content tagged with the first two. And regexp won't help much.

Further, properly implemented Hierarchical Tags as we've done in Clibu, give you structure and make it quicker, easier and offer a far more reliable way to find information.

That said no one forces you to use tags, so if you just want to rely on searching (and hoping) then you can.

Christian Tietze wrote:

Thanks for the list! I've never heard of some of the Mac apps, yet.

Actually, I prefer your other idea: I think it's future-proof to add a
glyph to keywords and put the resulting "#hashtag" (or "@keyword" or
"$whatever") into the title or the content precisely because you don't
have to rely on arbitrary file metadata, or worse, be locked-in by a
program's tagging feature.

What's the purpose you collected these apps for by the way?

Christian Tietze wrote:

into the title or the content precisely because you don't
have to rely on arbitrary file metadata, or worse, be locked-in by a
program's tagging feature.

Yes, ideally you'd want to have the tags/categories etc. to be included within the exportable body of the file, below or above the content somewhere.

But besides the point Neville is making, another reason to keep the title clean of #tags etc. is to make it more human eye friendly, e.g. when you're reading through a large list of titles, or when you want to include it as part of a link of some sort.

And one should be able to include the keywords (without the markers) as part of the descriptive title of an item.

Neville Franks wrote:

Tags along with auto-suggestion prevent issues arising from misspelling
words. So if you enter #aeroplain, #airplane and #aeroplane in different
articles and search for #aeroplane you won't find content tagged with
the first two.

Auto-suggestion (as a popup with an alphabetical list) is also useful for spotting mispelled tags or tags with both singular and plural form.