A long demo of a Roland TB-303, with the Borg modifications by Analogue Solutions. Also in the mix is a TR-808, acting as the master, with a little reverb; the 303 is 100% dry.
via Matrix

This gets my vote for the coolest thing you’ll see this weekend.
It’s a live performance using the Hobnox AudioTool - the new browser-based virtual studio - using a MIDI controller and Percussa AudioCubes.
See the tutorial at the Hobnox site, too!
Joa Ebert & Kai-Phillip, via David

Probably no synth has been cloned more times, both in hardware and software, than the Roland TB303.
But while excellent hardware 303 clones (FR777) have been available for years, virtual versions have never been completely satisfying.
AudioRealism’s BassLine 2 changes that. It cranks out authentic 303 sounds, using a simple interface that will be familiar to 303 [...]

 

 AudioRealism Bassline Demo [1:12m]: Play Now | Play in Popup | Download

 

 AudioRealism Bass Line 2 Loop 01 [0:16m]: Play Now | Play in Popup | Download

 

 AudioRealism Bass Line Acid Loop 02 [0:14m]: Play Now | Play in Popup | Download

Check out this insane stop-motion animation of building an x0xb0x bassline synth:

x0xb0x is a very cool DIY project that recreates the classic Roland TB303.
emerography via AudioLemon

MigMusic.com has two new collections of Techno/Trance/Dance basslines (which were originally created for use with Propellerheads Rebirth) available that can also be used with AudioRealism Bassline 2/Bassline Pro/Semi Modular VST software synthesizers. These patterns can be easily loaded using their specific ‘import Rebirth pattern’ feature.
Here are the details about each collection:
Rebirth Tb303 Basslines Collection - [...]

Native Instruments‘ Massive 1.1 is now available, featuring 140 new sounds, virtual-analog oscillator modes, an Acid Filter and a Hardclipper Effect, adding “even more beef to the already enormous sound spectrum of Massive”.
Registered Massive customers receive the update for free. For everyone else a new demo version for Mac and PC is available for download.
New [...]

As Fatboy Slim once said, “Everybody Needs a 303“.
Unfortunately, this means that getting a used Roland TB303 is usually expensive or impossible.
If you’re a DIY’er, though, Oakley Sound has announced the TM3030, a MIDI-controlled Roland TB303 bassline clone designed to sound good, be easy to build and use no really difficult to get parts. The [...]

 

 TM3030 TB303-Clone Sample [0:11m]: Play Now | Play in Popup | Download

Electronica band SubAtomicGlue has a great step-by-step, blow-by-blow account of building and troubleshooting an x0xb0x kit. They call it the xoxl0g.
If you’re not familiar with the x0xb0x, it’s a circuit-accurate recreation of the electronics of the popular TB-303 bassline synth, with an updated sequencer and some goodies like MIDI and USB connectivity.
The blog takes you [...]

Propellerhead Software today announced the discontinuation of development and support of ReBirth, the first software synth emulation software. The legendary product will now be available for free. In addition, Propellerhead Software is creating a dedicated website for ReBirth, RebirthMuseum. It will include articles, interviews, historical information, the ReBirth song and Mod archives, a discussion forum, [...]

Future-Retro has announced that The Revolution, an innovative new analog synthesizer, is now in production.
The Revolution is Future-Retro’s latest “concept synthesizer”. Future-Retro is best known for its killer 777 synthesizer.
According to FR’s Jered Flickinger, The Revolution provides “an intuitive interface which we feel most accurately represents the principles of time and music. From ancient sundials [...]

Analog to Digital has realeased a set of virtual instruments for fans of both analog and digital synthesis.
The Reincarnation series is a set of sample based
synths which have the authentic solid analog feel. They allow the user
to change the filter level with a keyboard mod wheel, and also to
select resonance levels. It can even recreate [...]

Future Retro calls this analog beast the 777, but be warned! It should have been called the Future Retro 666, because its combination of sinful sounds and tempting knobs is highly addictive.
The 777 seems innocent enough, until you find yourself wide awake at three in the morning, tweaking the perfect bassline in a cold sweat! [...]

 

 Future Retro Demo [1:00m]: Play Now | Play in Popup | Download

Disco never really died.
Instead it mutated, and one of its mutant offshoots is House Music. House music retains much of the heavy regular beat of disco, but tends to be more electronic, with drum machine rhythms and synthesized basses. The music is song based, and draws on a variety of influences, including Latin, jazz, soul, [...]

Techno music came out of Detroit in the 1980’s, and carried the influences of popular electronic music of the 1970’s to the dancefloors. The music features regular, pouding beats coupled with distorted synthesized sequences.
The best known early techno producers are Juan Atkins, Derrick May, and Kevin Saunderson, sometimes known as the Belleville Three. They made [...]

TB303.org - This site is a portal site devoted to the Roland TB-303, one of the most important instruments in electronic music over the last twenty years. It has 303 news, and 303 patterns for many types of electronica.
See also the Synthtopia review of the Roland TB-303!