Oh to be able to comment on web pages

On my wish list for the web - once again -  is the ability to easily save web pages locally as a single file AND be able to highlight text and add notes to the existing page - all while within the browser.

The above can obviously be done by taking a screenshot and then adding text in Photoshop. That is not what I want. That is not what I need. No. The Christmas gift I want for this year is to be able to save and comment on web pages.

Future Technology, this is not far-fetched

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