Welcome to WebmasterWorld Guest from 184.108.40.206
You said you were once ranked high on Google, have you ever think of the reason why you are not by now?
Did you made some major changes to your site, ie. keyword spamming, keyword density, duplication of your own content, ____(fill in with other black hat skills).
[My question is do you think going hard on the links will fix the problem?]
-- YES, DEFINATELY! do it with a long term plan at mind as most probably you will be only seeing the effects after six months. Consider all the details like link age, anchor text, as well the relation of link partners with your site theme.
[I've purchased a few PR 7 links and PR 6 links and started working hot and heavy to exchange PR4 links with relavant sites. ]
-- Some suggest link buying is the best approach. but NOT for me. No point to put your link on someone's page just because of it has a wide green bar. when doing linkings, think traffic and your search rankings, NOT PR!
Hope my idea helps. Good luck!
My question is do you think going hard on the links will fix the problem?
I personally don't think so. It might help, but if google sees a big spike in the number of links over a short period of time, that might do more harm than good.
Like Pico_Train said: time and patience.
And some clues as to which data centers are worth watching, if at all?
Check the last two or three pages of the official update thread. There are some data centers mentioned there.
Or is it better to keep head down until it's all over?!?
If you can, that's usually the least stressful way to go. I'm trying to. :)