I would like to know is there a way here on bitcointalk or other places on net for fundraising-to collect money in a short period of time for sick friend? Any advice would be appriciated
Since some websites are already given to you. Why not just visit a charity for your friend or any government agency that will give your needs?
Because when once my grandpa needs to have an operation and we don't have enough money for sustaining that operation.
We just went to the charity office which is a government based agency.
That is correct. It is better to start on your own vicinity or place or even your government to help you initially instead of starting to seek for help online. It is hard to collect donation funds online because of trust issues accompanied with the lack of personal information with regards to a specific person the help for donation will be given.Instead start with those who already know you and they can spread it afterwards.