Hi, I wonder if changing permalink (domain/title) to (domain/category/title) will remove previous backlinks? How about if using 301 redirect to fix broken link? Is it still consider as backlinks? what the effect to root domain..still get weight? Since new update my traffic drops but my articles unique and quality but maybe the backlinks cause it. This is the last thing i want to if in 2 or 3 weeks nothing changes to my site serp. Dammit big G..