This is sure to be controversial, but I can’t argue with their thoroughness. 
Acid Voice has compared a collection of the top clones of the Roland TB-303 and ranked them, based on how well they clone the sound of the original acid synth. 
They’ve got audio demos and in depth comparisons of the various bassline synths, including [...]

Synth DIY supplier The Bride Chamber has introduced a variety of new products:

Nine new modular synth panels, including designs for Oakley Triple LFO, Oakley VC-LFO, the Wogglebug and more
PCBs - YuSynth CV Standards boards and kits.
EMS-style knobs

Bride Chamber is turning into a great resource, offering supplies for building CatGirl, Music From Outer Space, Tellun Corp, [...]

Electro-Acoustic Research (EAR), a consortium of modular synth designers, has announced a new line of modular synthesizer gear. The modules will be available in MOTM-compatible and Doepfer-compatible formats.
EAR describes their modules as “bent” and “not plain vanilla”.
EAR features the work of two established modular synth designers, Mike Brown of Livewire and Peter Grenader of Plan [...]