This post is a list of the best and free Icon Sets for Web Designers, Developers and Bloggers that have ever been designed.
I hope I haven’t missed anyone!!!

Pinvoke – Fugue Icons

Sweetie – Web Communication v.1

Sweetie – Base Pack v.3

Random Jabber – Sizcons

Fast Icon – Circle Social Bookmark Icons

 

twothirty – twotiny

ExplodingBoy – Pixel Icons

Ndesign Studio – Mini Pixel Icons

Sryo – Minimal Icons

Markup – Free Icons (9 free sets)

Fast Icon – Smashing Feed Icons

Fast Icon – Web 2 Icons

Fast Icon – Feeds Icons

Fast Icon – 3D Rss Feeds Icon

graphicPUSH – Icon Pack

SOME RANDOM DUDE – Bitcons

Feed Icons – Home of the Standard Web Feed Icon

Ganato – 24 Free Icon Packs

Free Icon Web – 11 Free Icon Sets

DryIcons – Stickers Icon Set

famfamfam – Silk Icons

Brand Spanking New – Free Mini Icons

DryIcons – Blossom Icon Set

DryIcons – WYSIWYG Sapphire Icon Set

DryIcons – WYSIWYG Classic Icon Set

Matt Ball – Developer Icons

Monofactor – Free Vector Icon Set 1

famfamfam – Mini Icons

Ten by Twenty – Vaga

sone-pl – Light Icons

We Function – Function Icon Set

lopagof – Facebook UI Icons

taytel – ORB Icons

Blog Perfume – Free Glossy Blogging Icon Set

Design Freak – RSS Icon Campaign – 10 Amazing RSS Icon Sets

chris.ivarson – Free Icons (7 Free Sets)

Mayosoft – Email Me

WebFruits Blog – Social Web Buttons – Set 1

DryIcons – Sketchy Paper Icon Set

Free Icon Download – Free web development icons #4

Zeusbox Studio – Feed Icons

Vikiworks Studio – Social Bookmark Iconset

Vikiworks Studio – Social Bookmark Iconset: Part II

liquidicity – 77 Vector Buttons hot off the press.

kurumizawa – Free web development icons

kurumizawa – Free web 2.0 RSS icons

xlphs – WIP: Web Iconset

WebFruits Blog – Social Web Buttons – Set 2

Icojoy – BacktoPixel

Icojoy – Free web development icons #1

Icojoy – Free web development icons #2

Icojoy – Free web development icons #3

Icojoy – Free web 2.0 RSS icons

AODdesign – Social Networking Icons

No spelling errors I hope (eh, Trev).