Use Anchor Texts Naturally
Google loves backlinks generated naturally rather than links built by spamming. So, natural backlinks are more indexed. If identical keywords are used in several anchor text locations, Google considers this as link spamming and it’s subject to severe penalty.
Thus, in generating backlinks, make sure you use different keywords in the different anchor text locations. So, be conscious of this while using anchor texts in high PR online forums.
Use Your Content Keywords as Anchor Texts
If the keywords selected for your content are judiciously used in anchor text locations, you’ll certainly improve your Google PageRank for specific keywords.
But if irrelevant keywords are used in anchor texts, either intentionally or the other way round, you’ll not improve your search ranking.
Add Relevant Links as Anchor Texts
While using anchor texts, never add irrelevant links. Do not link your readers to an irrelevant page because this leads to a bad user experience for those readers on your site and you won’t receive rankings for that.
To make the most out of anchor text usage, link readers only to pages complementary to those they are linked from.