YOUR FAVORITE WEBSITES (Leipzig)

HI Everyone, what are your FAVORITE GERMAN WEBSITES to help EXPATS find information on the following topics:
- comparing mobile plans
- local German language courses
- health insurance
- accommodation
- information on the marriage process for foreigners marrying locals
- jobs, self-employment
- resident or work permits
- transport including car, train, plane
- networking
- local entertainment including music, sport, movies, TV
- ......and also related to job search, do you have lists of local companies that employ english speakers

BIG THANKS IN ADVANCE FOR ANY CONTRIBUTIONS ;-)