Here is a list of the Developer/Designer blogs in my RSS list in no particular order. Feel free to suggest more if you want!

• instantShift  http://www.instantshift.com
• Adactio: Journal  http://adactio.com/journal/
• For A Beautiful Web  http://forabeautifulweb.com/
• The Mozilla Blog  http://blog.mozilla.com
• Gadgetopia  http://gadgetopia.com/
• HTML5 Doctor  http://html5doctor.com
• Yoast & The WordPress Podcast  http://yoast.com/
• iDesign Studios  http://www.idesignstudios.com
• camen design  http://camendesign.com/
• WP Engineer  http://wpengineer.com
• Six Revisions  http://sixrevisions.com
• i love typography  http://ilovetypography.com
• Web Designer Magazine  http://www.webdesignermag.co.uk
• SimpleBits  http://simplebits.com
• Choose Opera  http://my.opera.com/chooseopera/
• Smashing Magazine  http://www.smashingmagazine.com
• Smashing Apps  http://www.smashingapps.com
• Andrew Nacin  http://andrewnacin.com
• Dev Opera  http://dev.opera.com/feeds/rss/articles
• Vectortuts+  http://vector.tutsplus.com
• Nettuts+  http://net.tutsplus.com
• Mobiletuts+  http://mobile.tutsplus.com
• Justin Tadlock  http://justintadlock.com
• WordPress Nettuts+  http://net.tutsplus.com
• phpied.com  http://www.phpied.com
• Nikki Jeske  http://snailbird.com
• Jonathan Snook  http://snook.ca/
• Post Haste  http://posthaste.henkinschultz.com
• Dave Rupert  http://daverupert.com
• Matt Martz  http://sivel.net
• Clients From Hell  http://clientsfromhell.net/
• Speckyboy Design Magazine  http://speckyboy.com
• Think Vitamin  http://thinkvitamin.com
• WordPress Development Blog  http://wordpress.org/news
• Webmonkey  http://www.webmonkey.com
• Alex Sexton  http://alexsexton.com
• John Resig  http://ejohn.org
• Fleeting Epiphanies  http://blog.w3conversions.com
• WpRecipes  http://www.wprecipes.com
• Color + Design Blog by COLOURlovers  http://www.colourlovers.com/blog
• Mathias Bynens  http://mathiasbynens.be/notes
• Microformats  http://microformats.org
• Nimbupani Designs  http://nimbupani.com/
• Cognition by Happy Cog  http://cognition.happycog.com/
• YDN Blog  http://developer.yahoo.com/blogs/ydn
• Paul Irish  http://paulirish.com
• Tammy Hart Designs  http://www.tammyhartdesigns.com
• mezzoblue  http://mezzoblue.com/
• Rebecca Murphey  http://blog.rebeccamurphey.com
• Erika Napoletano is Redhead Writinghttp://www.redheadwriting.com
• A Blog Not Limited  http://ablognotlimited.com
• Mark Jaquith  http://markjaquith.wordpress.com
• Oli Studholme  http://oli.jp/
• Aaron Brazell  http://technosailor.aaronbrazell.com
• Lisa Sabin-Wilson  http://lisasabin-wilson.com
• Perishable Press  http://perishablepress.com
• Stubbornella  http://www.stubbornella.org/content
• Dan Beam  http://danbeam.org/blog
• Michelle Thorne  http://thornet.wordpress.com
• Webdesigner Depot  http://www.webdesignerdepot.com
• Eric Meyer  http://meyerweb.com/
• Web Designer Wall  http://webdesignerwall.com
• Faruk Ateş  http://farukat.es/
• Grace Smith  http://www.gracesmith.co.uk
• Molly Holzschlag  http://mollydotcom.tumblr.com/
• SpyreStudios  http://spyrestudios.com
• Standardista  http://www.standardista.com
• Digging into WordPress  http://digwp.com
• Bruce Lawson  http://www.brucelawson.co.uk
• Graphic Content  http://graphiccontent.squarespace.com/graphic-content/
• Lea Verou  http://leaverou.me
• Christian Heilmann  http://www.wait-till-i.com
• Vectips  http://vectips.com
• Web Design Ledger  http://webdesignledger.com
• Remy Sharp  http://remysharp.com
• CSS-Tricks  http://css-tricks.com
• Viper007Bond.com  http://www.viper007bond.com
• Pro Blog Design  http://www.problogdesign.com
• A List Apart  http://www.alistapart.com/articles/
• 1stwebdesigner  http://www.1stwebdesigner.com
• Onextrapixel  http://www.onextrapixel.com
• The GitHub Blog  http://github.com/blog
• Darcy Clarke  http://darcyclarke.me
• WPCandy  http://wpcandy.com
• The WHATWG Blog  http://blog.whatwg.org
• Mozilla Hacks  http://hacks.mozilla.org
• Web Designer Online  http://www.webdesigneronline.co.uk
• Chromium Blog  http://blog.chromium.org/