Actually I noticed one thing, which is quite interesting. In backlinks building high quality blogs in blogger have pretty good weight is building SERP of your website. Actually this is true for the blogs with PR equals and more than 3. Google do not look to IP addresses of the blogs (they are in one IP) and calculates them as different websites. I have tested this thing last months and made some conclusions: 1. Blogger is very good for link building and improving SERP of your websites. 2. Google do not count when the blog was created (even young blogs 4-5 months old with high PR are giving quality backlinks to websites) Please waiting for any suggestions of all you about thiese conclusions I had done.
1) I agree that blogger links are good, unless it is a low PR blog with few backlinks. 2) No I don't think the search engines consider how old a particular page is when weighing backlinks. They are more concerned with how old the domain is. It is a good idea to get lots of quality backlinks from a wide variety of trusted websites. So don't just focus on blogger blogs. Make sure you also get other good backlinks.