Good Technical Web Resources To Bookmark

During my study, I came across some useful web resources which I thought of sharing with you all. My intent is to have them all in one place for my reference so that I can always come to this post and browse when needed. I'm going to update this post if I come across any new web resources which I think worth booking marking. The readers of this blog can also have a look at  these resources. If you have any web resources which you think are good ones, you can leave a message against this post, I'll take a look and include those. Hope these resources benefit you all as well.

Design pattern & certification links:
OO principles: http://www.objectmentor.com/omSolutions/oops_what.html
UML, design patterns: http://sourcemaking.com/uml 
Strictly Singleton pattern: http://javarevisited.blogspot.in/2011/03/10-interview-questions-on-singleton.html
IBM UML certification: http://www-03.ibm.com/certify/tests/edu833.shtml

New tools/technology updates:
News about tools, mobile apps, cool websites: http://www.makeuseof.com/
Highly successful kickstarted project: https://www.kickstarter.com/projects/556341540/pressy-the-almighty-android-button . You can find someother cool projects here
MIT technology review: http://www.technologyreview.com/
Geekwire: www.geekwire.com/
Technology Advice, product review: www.thinkdigit.com
Engadget: www.engadget.com
Technology updates: www.gizmodo.com
Tech journals: www.gigaom.com
Java code geeks: http://www.javacodegeeks.com/

Understanding mechanics & engine:
Mechanical movements animated: http://507movements.com/mm_114.html 
Animated engines: http://www.animatedengines.com/index.html

Utility:
Sorting algorithms Animated: http://www.sorting-algorithms.com/
Compress photos without degrading quality: http://www.jpegmini.com/

Java Developer Links: http://www.cygnet-infotech.com/41-websites-every-java-developer-should-bookmark
Good Read: http://money.cnn.com/2013/11/21/leadership/steve-jobs-elon-musk.pr.fortune/index.html