Part of my link building plan is to build a web 2.0 link push which consists of high quality web 2.0 sites with articles and media in as my first tier, and then a range of other high quality web 2.0 sites with articles and media pointing to my first tier. For example I have between 2-6 high quality tier 2 links for each of my tier 1 links. The problem I am facing is I can not get them indexed. Most of these tier 2 links are now over 2 months old and I've recently been blasting them with comments daily in attempts to get them indexed. Seems like I am having no luck at all and can't seem to get my tier 2 links indexed. A few of them have actually been indexed but 75% of them are still not indexed.