What is the Best Backlink Strategy at present?

Can you please tell me the best present backlink strategies for SEO. Can you suggest me some high authority dofollow backlink site and proces? Another question is that what is the best way to rank my keywords?

i think build backlink in web 2.0 is the best

The best backlink building strategies to rank higher and generate good traffic are:

Guest posting
Article submission
Press release submission
Social bookmarks
Classified ads
Infographics submission

Link building best practices are often changing, and it's crucial to stay up to date with what works best in the present.

1.Use Social Media Websites
2.Submit Guest Posts To Relevant Blogs
3.Post comments on Relevant blogs
4.Participate on relevant forums
5.Get involved in Q&A sites
6.Use popular or local directories
7.Article marketing
8.Video marketing
9.Guest posting
10.Forum posting

Above defined strategy is best for every webmaster.

Best backlink strategy at present are as follows:

Web 2.0
Guest posting
Article submission
Press release submission

Hi,
i would suggest you some techniques to get good backlinks.

1. Give Testimonials
2. Find Link Opportunities From Blog Posts
3. Blogger Reviews
4. email campaign
5. Link Roundups
6. Link Reclamation
7. Find Unlinked Mentions
8. Build Broken Backlinks
9. Edu Resource Backlinks
10. Submit Your Site to Website Feedback Sites

Best backlinks strategy are:
Web 2.0 Submission
Guest posting
Blog Submission
Press Release Submission
Social Bookmarking
Forum Posting
Blog commenting
Micro blogging
PDF Submission
Video Submission

article submission..
Guest posting ..
Forum discussion ...
video submission ...
Profile creation ....

Guest Posting.
Article Submission.
Press Release Submission.

Social Bookmarking Submission
Directory Submission
Forum Posting

Best Off-Page SEO: Backlink Strategies are Blogging, Forum posts, Press release submission, PDF sharing, Infographic submission etc.

Very Useful Information.

I have compiled 7 of the best ways to build high-quality backlinks that will actually bring traffic to your site.
(1) Q&A Mediums
(2) Guest Posting
(3) Put Links in the Comments of Related Blog Articles
(4) Broken Link Building
(5) Submit To Blogging Communities
(6) Help A Reporter Out
(7) Link Reclamation