I'm looking to promote my new website. And I've been noticing some people under services, offering exceptionally cheap prices on Xrumor blasts. What I'm wondering is: I have a landing page, with a single field opt-in on it, for people to receive some music free. The page has all on-site keyword optimizations (title, url, meta, etc). Most of the competitors for these keywords have < 200 backlinks. Under 3 years old, and are not on-site optimized. Think it would be sufficient to just get the 500 verified backlinks, or should I go with 10,000? Please keep in mind all landing pages rest on my primary domain, which I don't want banned or sandboxed. Think an Xrumor blast is enough, or should I get article submission/social bookmarking going as well? I'd like to keep total cost under $50 per landing page if possible.