How to search Discusisons, Blogs and patents in Google

if you want to search for patents use:
patents.google.com or
https://www.google.com/?tbm=pts

if you want to search for blogs use:
google.com/blogsearch or
https://www.google.com/?tbm=blg

if you want to search for discussions use:
https://www.google.com/?tbm=dsc
you can then decide between All, Forums ,and Q&As