I want to ask something to warrior who is expert in SEO :
I'm planning to buy backlinks (some kind of blogroll) from high PR sites (PR 5-7).
1. Is this kind of backlink will give significant result to the SERP? Since it costs high (more than $100 per link for PR7), i don't want to waste my money if it doesn't give significant result in SERP?
2. One of my sites suddenly disappeared from SERP ( it usually in the 1st page for some of its kw's and it's been a month now, so it's not g-dance i think), will this kind of backlink helps my site back in SERP?
3. How long will i see the result with this kind of link?
4. If my site is brand new, (less than 1 week), will it be wise to buy this kind of link?
Please help me, i will really appreciate for any answers here.
Once again, thanks,