I'm into link building, read some stuff here and on the internet, but I was thinking, it is better to write manually articles for tier 1 links, but what type of links? I mean, I can use articles written on blogger and similar as tier 1, or create my own website as tier 1, but which other type can be used as tier 1? I can use some blog profiles to write optimized articles and then use tier 2 links to point at them, right? But what else can be used as tier 1 links "host"? Suggestions? Thanks for the answers.