Introduced in Internet Explorer 8 Beta 1, Web Slices can be previewed in a fly-out window.

It allows you to "follow" an area of a web page through a dedicated feed bookmarked in a new toolbar.

[7][9][10][11][12][13] Fireclip is a Firefox addon that lets you "clip out" parts of a website and watch them for changes.

It lets you track specific parts of a website in a similar manner to web slices.

[14][15][16][17][18][19] Pageslices was another Firefox addon that allowed not only storing parts of websites but also organizing them by adding on custom pages.