A couple of weeks ago I compiled a list of 20 Cool Photoshop, Photography and Design Twitter Accounts You Should Follow for my Photoshop Roadmap Blog.
The post was a big success and I decided to make a more design and art oriented version for this blog. These accounts are very active and are sending tweets every day about illustration, art, industrial design, decor, designer toys, design in general, and even job posts for the design community.
If you are new to Twitter, start building your followers base by following some of these accounts and retweeting their best messages or, better said, tweets.

Development01 Network: @development01

I will start with my own Twitter account. The Development01 Network is a group of sites that I own and manage myself. The most important of those sites are Photoshop Roadmap and Creative Closeup. In my Twitter account I tweet everyday about Photoshop tutorials and design resources. From time to time I engage on certain conversations, but mostly I provide useful and interesting links.

Follow Development01

Dornob Design: @dornobdesign

From Dornob site: Dornob is as much an interactive design archive as it is a collection of the latest innovative architectural, interior, furniture, furnishing and fixture designs. The primary focus of this design publication (read: blog) is on works that take form and function to the next level – that defy particular typologies, wander away from convention and are more than merely consumable objects.

Follow Dornob Design

Paperkraft: @paperkraft

From Paperkraft Blog: My name is Ron Rementilla and I run Paperkraft.net to help guide people find the best free papercrafts on the web and promote the works of prominent and up-and-coming paper modelers, even the obscured ones.

Follow Paperkraft

Toysrevil: @toysrevil

From Toysrevil Bio: Blogging daily about Toys and all-things pop culture. Twittering everything under the sun and moon, bopping up-n-down the subconscious stream of cyberlife.

Follow Toysrevil

Drawn!: @drawn

From Drawn! blog: Drawn! is a multi-author blog devoted to illustration, art, cartooning and drawing. Its purpose is to inspire creativity by sharing links and resources.

Follow Drawn!

MOMA Museum of Modern Art: @MuseumModernArt

From MOMA site: The Museum of Modern Art is a place that fuels creativity, ignites minds, and provides inspiration. With extraordinary exhibitions and the world’s finest collection of modern and contemporary art, MoMA is dedicated to the conversation between the past and the present, the established and the experimental. Our mission is helping you understand and enjoy the art of our time.

Follow Moma, Museum of Modern Art

Yanko Design: @yankodesign

From Yanko Design blog: Yanko Design is a web magazine dedicated to introducing the best modern international design, covering from industrial design, concepts, technology, interior design, architecture, exhibition and fashion. It’s about the cutting edge and the classic, the new and the rediscovered. It’s all about the best.

Follow Yanko Design

Retro To Go: @RetroToGo

From Retro To Go site: Home of all that’s hip and cool in the retro world. Every weekday, Retro To Go spoils you with a pile of supercool retro gear we’ve found around the web and indeed around the shops and junk shops of the world.

Follow Retro To Go

The Cool Hunter: @TheCoolHunter

From The Cool Hunter Site: The Cool Hunter is a natural fit for its readers – creative influencers who stay in the know and ahead of the curve. Global in outlook, culturally discerning, The Cool Hunter readers are connected, creatively aware, confident, stylish and sociable. They value architecture, design, style, music, fashion and entertainment. They work, play and travel internationally and bring with them distinguished tastes and a demanding appetite for quality information.

Follow The Cool Hunter

Core77: @core77

From Core77 site: Since 1995 Core77.com has served a devoted global audience of industrial designers ranging from students through seasoned professionals. Core77 publishes articles, discussion forums, an extensive event calendar, hosts portfolios, job listings, a database of design firms, schools, vendors and services. Core77 provides a gathering point for designers and enthusiasts alike by producing design competitions, lecture series, parties, and exhibits.

Follow Core77