I always try to get side wide links from good themed and niche web sites which has good PR at maximum pages.
Hello friend, you try to write as much quality content as you can do which will help you to get links,do blog commenting and forum posting,submit your site in DMOZ and yahoo directory.
links which are from reputable, relevant and high ranked websites are best. they give you link juice along with the possible flow of traffic.
Social bookmarking , Article , press release , blog commenting , directory with reciprocal is the best and strong back links.
Links from articles with proper anchor text is the best option. You should do some bookmarking for that article too.
I don't think there is a best type of backlink as it wholly depends on your site's niche. Here is a list of my personal favourites; 1. Link exchanges with sites in a similar niche to your own. 2. Article directory submission. 3. Directory submission 4. Do follow blogging 5. Do follow forum posting 6. Social media book marking 7. Twitter 8. Face book
I agree with that forum posting is the best. There is a possible that back link can be removed due to service unavailable or your account has been banned from directory or social bookmarking, etc. In forum if you are not spamming you will get good backlink from here. Forum is the easy way of backlinking than others
I have seen my website go up with adding bookmarks, commenting on socail forums.I definetly agree that link from a high PR site will be of higher value,but at the same time it is hard to get.