I guess it's the difference between:
a) blogging your thoughts about an article and linking back to it, which encourages people to read the original so they know the context for what you've written.
VERSUS
b) quoting all or almost all of the interesting bits from the article, and providing a link to the original.
In the latter case, there is no reason or incentive for the user to visit the source. In the past couple of years I've begun to think this is the wrong way to go about things.
To be fair, the intent of Gimme Bar is to be a personal web-saving tool first, and a "social" tool a very, very distant second.
There are enough tools and applications out there that let you share links and pictures of stuff you like, but not many that are completely focused on ensuring that those things you like stick around in an easily searchable and backup-able way.
VERSUS
b) quoting all or almost all of the interesting bits from the article, and providing a link to the original.
In the latter case, there is no reason or incentive for the user to visit the source. In the past couple of years I've begun to think this is the wrong way to go about things.