One of the best places to find out about new music is on blogs. What are some of your favorites? I check the following at least once a week:
Philip Sherburne - My favorite music journalist's blog
modyfier - This blog features many guests as well as the main writer's thoughts on the process of making music.
Little White Earbuds - Reviews of new records and podcasts
mnmlssg - commentary and lots of mixes for download
allez-allez - the blog of two of the most fun DJs from the UK. Lots of mixes and event news (if you live nearby).
I'd like to add my blog haha. I update every day and I release electronic tracks on it every day as well. Anything from House to DnB is covered.
So come check it out at ilictronix.blogspot.com and bring friends!