I subscribe to a newsletter from www.sqlservercentral.com that I like because each day I get an email digest with some interesting headlines & summaries of SQL Server articles that are already out there on the web. It's a great way to learn something new a bit at a time.
Is there something like this for C#?
(If your favorite one is already listed, can you vote for it so I can see what's most popular? Thanks!)
check out wwww.codeproject.com they have a lot of articles and various newsletters.
In addition to codeproject, I believe there are other sites like C# Corner, C# help which does the same..
Couple more I found useful (Not specific to C#):
Have you ever considered subscribing to blogs? You can often get better content than the daily subscription emails and if you want can even become a part of the discussion through the comments. Two that are generally good for learning more about the trade and C# are CodingBetter.com and Los Techies. If you are looking for something that is more of an aggregate of other sources Scott Gu routinely puts out a list of links that can be very informative in addition to helpful walk through articles.
Good luck,
You should try dotnetkicks.com which delivers nice rss feed of the most relevant .net blogs (imho). If you want the RSS-Feed emailed to you try feedblitz or xfruits