Pocket is a link saving service. Although it does allow users to categorize and search old links, Pocket shines as a very simple way to save a link to read later on mobile devices.
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Pro Allows tagging bookmarks
Bookmarks can be tagged for search accuracy later on.
Pro Allows reading saved content in offline mode
Instead of only saving the link, the content is saved for offline use.
Pro Available on the web and mobile devices
Pocket is available on iOS, Android, Kobo eReader and on the web.
Pro Integrates with over 500 apps
A key advantage of Pocket is that it is integrated in over 500 apps as a way to save the link, including Twitter, Flipboard, Pulse and Zite.
Pro Well-finished GUI and UX
Pro The Pocket plugin for Google Chrome is very stable
Pro Works well across Google Chrome on macOS and iOS
Pro Included in Firefox
Pocket is now integrated into the Firefox web browser, and you can login using your firefox/mozilla login, instead of having to create a separate account. This login method can even be used natively on their website, regardless what browser is being used.
Pro Ability to filter by content type
Con Correct and open export of bookmarks and tags are not possible
This means that Pocket is (currently) a total lock-in.
This is very sad, unfortunate and creates a no go decision for any seasoned user.
Too many bookmarking and tagging companies have stopped or have gone bankrupt these last years (e.g. Kippt, Spingpad, Delicious (to some extent), etc...). So, if you are going to invest a lot of your personal time and energy in curating your Internet findings (i.e. your bookmarks and tags), it is essential that a total, fair and open export (including all tags) functionality is provided. Personally tested the export "feature" and the resulting .html file that Pocket generates currently included only the URLs themselves, i.e. no save dates nor any of your personally curated tags, nor any other useful meta-data.
This is deplorable, because otherwise, Pocket is a very polished and well-functioning piece of multi-platform and multi-device software/app/web service, with a very easy and well-designed and implemented user interface...
Please fix this, Pocket !
These days of open and inter-operable web services, users are only attracted by valuable functionality, clean UX design and no lockins.
Con Can't Rename the Title of Links
If the page title isn't correct/good for a link, there is no way for you to fix it.