markallan: What is the best SEO solution to rank websites and safe for Penguin Update

Good quality on page backlinks - get back to reciprocal linking manually - and social bookmarkings.

The algorithm is always changing, so the best SEO solution is to stay one step ahead of the game.

I think its social media links and social bookmarking

by social media links.

Get Social Links And Ratings

Google will penalize sites for having backlinks built to fast by blasts from programs such as SeNuke and Xrumer.. penguin now says "slower is better", and SEO experts are recommending links built in blocks of about 25 per week MANUALLY will keep a site indexed and not taken off the google searches.
EDU links built by a person, not a bot, are still extremely effective.

provide good quality material and more links...

How about edu backlinks? Nobody answered, how many to backlinks to be safe? max 500, 1000 edu or more?