September 9th, 2013, 04:41 AM
Best type of permalinks?
At first fix your feeds category base/ tag base. Then you manage your permalinks as per your page subject.
September 13th, 2013, 08:02 AM
It will not give any adverse effect if you use canonical tag.
Check it, if you have not, read about it and see where it can be used and apply to yours.
September 24th, 2013, 06:21 AM
http://site.com/forum-linux this website url structure is good for SEO.