It would be good to go here as it very well explained and you can also read the above path specified in the previous reply - Visit for LSI
If I understand from now on every page, Google will add LSI - which would signify that the contents of specific pages related to the key words in the anchor link ... I think that there will no longer be used just keyword density, but will analyze all of the content, so the content will be able to create a more natural (and that Google will better appreciate it) ...
The latest shake up in the world of optimizing a website for better ranking is LSI. LSI this course is an acronym for latent semantic indexing.
IMO LSI is bad for all those bot based sites which fill up pages with lots of junk content, hope they are not able to use LSI to their advantage. natural writing works best and am quite glad that Google is honoring it. thank you for all the useful posts, i was unaware of LSI too.
I think in the long run LSI will be fine. Scammers will figure out a way around it and Google will figure out a way to stop them. It all balances out in the end.