2. Interact with bloggers in your field, build relationships so you can share and exchange links, they could even retweet your link etc.
3. Also see if there's any groups on twitter you can join in your field, for example beauty bloggers use hashtag #bbloggers.
4. Follow blogs in your field, comment on their posts (genuine and heartfelt don't be insincere and just comment with check out my blog, that's just rude). Build relationships with other bloggers.
Good luck :)