my favourite website at the moment
lifehack.org is the best site I’ve come across recently. It has regular articles about improving your life, both with technology and more general methods. It does get a bit wierd, for example there are articles about meditating at your desk, but I am finding it very helpful.
There is also something similar called lifehacker.com but this is more about computers and technology. I have found some useful things on lifehacker, but I think the quality of lifehack.org is much better.