Some useful Utilities

Tech info section - http://aruljohn.com/info/
games section new
NETWORK: IP address tracking,telephone tracking,MAC address lookup,IP/CIDR subnet,IP to hostname,hostname to IP,view HTTP headers
GEOGRAPHIC: weather forecast,zip code lookup,areacode lookup,country information
MISCELLANEOUS:word pronunciation,browser language,phishing website test,gzip compression test,html color picker,stock quotes lookup,proxy server list,news feed (rss)

National Program on technology enhanced learning

National Program on technology enhanced learning is initiative of
IIT's and IISC to make there coursware available for free of cost on
internet.
As part of intitative, lecture videos of IIT's and IISC ofdifferent
courses have been placed on youtube site

http://www.youtube.com/user/nptelhrd

stack dump vs core dump

Stack dump, as the name suggests, only contains the stack information of
the executable that generated it, at the point in time it was generated.

Core dump contains information about memory and registers apart from the
stack info.

You can generate a core dump of a running executable using 'gcore' on linux or
'dumper' on cygwin.If you questions is about programatically generating core dump, you
would need to take a look atgcore's implementation to see what it does.