other sites link to your website link will increase the weight for you, so that the weight distribution of external links into the more the more. But there is a little difference between the weight of high to low pass, may cause the latter to be K, a corner of the iceberg to explain is the weight overflow, website within a specified time is a normal weight value in a certain range, if the sudden increase in weight is beyond the scope of overflow, will be punished.
The weight of
site links to other sites, have no effect on their website weight. If the direction of spam links will lead to drop right, not because it is derived and the influence of the iceberg? Explain in a corner to spam links is a poor performance optimization, search engine will reduce the weight value of the site is growing, the total weight of the site is reduced, instead of the decentralization.