Which are your methods to get backinks?

Blog comments, blog posts, social bookmarks and directory submissions.

Don't over-do any one method!

Hi,
To improve your Blogs search engine visibility and ranking, as you have noticed you need to create backlinks and other links. If it's a google blog they also love Video(because they own You Tube)
Don't forget to ping your blog at pingomatic.com and submit it to Technorati. Also try some of these, although they aren't all free.
Blog Catalog
BlogExplosion
Technorati
BlogPulse
BlogHub
BlogFlux
BlogStreet
BlogDigger
Read A Blog
Globe of Blogs
KMax
Blog Universe
Blog Search Engine
BlogHop
BlogWise
EatonWeb
BritBlog
Bloogz
Truth Laid Bear
Blogz
Blogdir
Blogs R Us
Feed Map
Blog-Search
BlogSweet
BlogTastic
Blog Intro
FindingBlog
Bulletize It
Blog Top SItes
BlogBib
Best of the Web Blogs
Blog Directory Submit
I Blog Business
Blog SIte Zone
BlogTopList
All-Blogs
Answers.com
Blawg
In general try to build links using the following tips:
1. Exchange links with other bloggers
2. Use BlogRush (I think they've closed down)
3. Submit to RSS directories
4. Submit to blog directories (as above)
5. Submit to general directories
6. Start a 2nd blog and link to yourself (or 3rd , 4th, 5th)
7. Create and give away blog themes (with a link to your blog in the footer)
8. Create free plugins
9. Create link bait
10. Participate in blog carnivals
11. Comment on DoFollow blogs
12. WordPress Backlinks Plugin (link removed due to possible security issues) COMMUNITY:
13. Join communities at MyBlogLog
14. Join communities at Bumpzee
15. Join communities at Blog Catalog
16. Start a community at any of these sites
17. Comment on other blogs in your niche
18. Email your friends and contacts about a new blog post that may interest them
19. Email your readers to say "thank you"
20. Email other bloggers to introduce yourself
21. Link out to other blogs
Social Media is free
22. Digg
23. del.icio.us
24. StumbleUpon
25. Reddit
26. Netscape
27. Magnolia
28. MySpace
29. Facebook
30. YouTube FORUMS:
31. AuthorityBlogger

"Free traffic" is not really free. You must figure the value of your time or the cost of outsourcing for implementing all of these good recommendations, above.

The key is to get long term value for your investment (time + money). A solid article marketing strategy will provide such benefits over the long haul.

Add to that a high conversion rate with repeat customers, and you can succeed.

to get more back links do forums signatue linking , social media, social networking, article submission

Try to get some profile links - Terry Kyle and Angela's backlinks work very well!

Blogging is very useful method to get backlinks and social bookmarking is also very effective

Thanks everyone for your advices

I use blog posts,classified ad posts, forum signatures, main important is blog comments, and also submit comments to digg posts freqently gave a good value..

Article Submission
Directory Submission
Blog Psot
Blog comment
Forum Posting
Press Relise
Hub page
Squdoo Leanse
Social Bookmarking
Yahoo Answer

Is making posts on google groups or yahoo groups a good way to get backlinks?
Because it seems to me that this is a waste of time, everyone there are trying to promote their sites, nobody, I think, actually reads anybodyelse posts.

How do you guys manage the time on making social media, blog comments and posts, forum signatures, etc.? It takes a lot of time for me to do all these over and over. What were the first 3 things for bringing free traffic you made after setting up a new blog?

Thanks

I would personally ignore the bit about submitting to directories TBH. Most are completely ignored by Google nowadays. Spend the time reading and learning from quality SEO sites and forums instead.

Article submission
forum posting
blog posting and commenting
social bookmarking
classified ads
posting to web 2.0 properties
yahoo answers and similar method
link exchange

Social bookmarking, forum posting and Angela's backlinks

"Or worse - considered as link farms. (some not all)Or worse - considered as link farms. (some not all)"

I own a few directories and even I am selective.

I submit to a handful of quailty directories. I also will do a submission where I find a top competitor listed when checking their backlinks.