If you ask certain question and have opened related items on some internet address,
you just have to copy that address by :
1.selecting the whole address.
2. press control + c.
3. bring the cursor to the place where you want to put the link/address and then click control + v
for e.g i have a question about back ache or i am answering to a question about back ache and i find a link for that, i will copy it and paste it.
it will show like
www.home-remedies-for-you.com/remedy/B�