I'll list some of the ones I'm reading, via RSS:
Blog aggregators:
- http://java.dzone.com
- http://javacodegeeks.com
- http://www.programcreek.com/2012/11/top-100-java-developers-blogs/
Blogs:
-
http://relation.to/Bloggers/Gavin - Gavin King - the guy behind Hibernate, Seam, Weld, Ceylon
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http://vladmihalcea.com/ - Vlad Mihalcea's blog (Hibernate Developer Advocate)
-
http://blog.springsource.com/ - Spring source team blog
- http://developers-blog.org/
-
http://misko.hevery.com/ - Misko Hevery, on testability and tdd
- http://krams915.blogspot.in/
- http://programcreek.com/
- http://mkyong.com
-
http://blog.jooq.org - On Java, SQL, and jOOQ (and occasionally Hibernate)
- my blog
Websites:
- A couple of JavaLobby forum sections - you can follow whichever section of the forum you like
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http://www.theserverside.com/ - The Server Side
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http://www.devx.com/Java/Door/6972 - DevX Java zone
-
http://www.javaworld.com/ - JavaWorld
-
http://www.infoq.com/java/ - InfoQ
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http://www.java.net/articles - java.net articles
- http://onjava.com/
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http://www.javased.com - Search Engine for Java Code Examples
-
http://modernpathshala.com - Java
-
http://www.baeldung.com/ -Spring or Java
The basics:
Maven
- Sonatype Blog: http://www.sonatype.com/people/
- Brett Porter's blog: http://brettporter.wordpress.com/
Hibernate
- In relation to...: http://blog.hibernate.org/
Spring
- SpringSource Team Blog: http://blog.springsource.com/
You can read Spring Articles and Hibernate Articles
Mkyong.com
DZone
Rose India
Ben McCann's blog
Vlad Mihalcea's blog (Hibernate Developer Advocate)