I am planning to read some design patterns and I took the book on "design patterns in C++' by gang of four. However, I am not really some one who reads book and prefers reading slides/watching course lectures and then apply and read the book. I cannot find any course lecture videos on net(yeah, its not that important a course as algo/OS). Any one know any course website, preferably on C++
Well, it's not a course, but...
C++ Programming/Code/Design Patterns looks like a good book to look at. It is a book from Wikibooks (by Wikimedia).
If you want a course...
Another thing to look at might be Design Patterns Course by Sourcemaking. It has 97 lessons (7 hours) and includes 2 great books in the price. The only major con is that it is currently $49.95. But if you ask me, that's a good price for two books and 7 hours worth of video.
Take a look at the Design Patterns tag on Dimecasts. You might be able to find something there.
This question has been asked on Stack Overflow. There are some great answers there, so take a look at that too.
Hope this helps!
It's mostly Microsoft stuff but I like the video training at http://www.pluralsight-training.net/microsoft/Courses/TableOfContents?courseName=patterns-library. They have a free trial.
In addition to what others have posted, I've always found dnrTV to be a fairly interesting: it's basically a screencast with a host and a special guest for each episode. They generally work through some concepts and do some actual coding, which helps a lot when you are new to concepts.
(Unfortunately, they focus on .Net... but for design patterns this shouldn't matter - most design patterns are language agnostic, and the difficulty is understanding why and where they are useful. Specific implementations can be looked up in minutes.)
They have a number of episodes dealing with design patterns - here is the first one, and their archives page. It's been a while, so I can't really remember what they cover in those episodes. In general though, they aren't bad, and it's fun to see some sharp people's opinions and toolsets.