Off Page Optimization is usuall consist of different link building methods.
off page optimization

* Directory Submission
* Social Bookmarking Submission
* Blog Posting
* Blog Hosting
* Article Submission
* Press Release Submissions
* Forum Posting
* Footer Links
* Affiliate Marketing
* Blog Commenting
* Review Posting
* Rss Feed Submission
* Css Submission
* Video Submission
* Profile Creation
* Link Wheel
* Social Media Optimization

You have covered all most all off page technique.I just want to add "Micro Blogging" in this list.This is really very nice technique to increase awareness as well as traffic for our site.

What is CSS submission?

Anyways! You could also add:
buying links/reviews/editorials on sites (not that I recommend doing so, but it still exists)
link exchanges (within theme and related sites)
link exchanges (done only to boost link juice)

Best is focus on one thing in what you are master in.. By the way you have covered all.

In the off-page following activities are important
1. Write and submit articles to the article directories.
2. Leave comments on other peoples blogs with a backlink to your site.
3. Answer peoples questions on Yahoo! Answers - Home.
4. Post in forums and have a link to your site in your signature.
5. Write a press release and submit it to PRWeb - The Online Visibility Company
6. Advertise your website in the appropriate category websites Free Ads. Website
7. Give an unbiased testimonial on a product/service that you have used in exchange for a backlink to your site.
8. Start a blog and submit it to the 100s of free blog directories.
9. Manually submit your website to the major search engines.
10. Optimize each page of your website for a particular keyword or search phrase.
11. Add a link in your email signature to your website. Its a free and easy way to get a little more traffic.
12. Make a custom 404 error page for your website redirecting people to your home page.
13. Use PPC search engine advertising.
14. Add a bookmark this site link to your webpages.
15. Have a tell-a-friend form on your site.
16. Send articles to ezine publishers that includes a link to your website.
17. Hold a crazy content and make it go viral.
18. Give away a freebie (ebook, report, e-course) to keep people coming back to your site you can get some Free book here.
19. Add an RSS feed to your blog.
20. Submit your site to any related niche directories on the internet

you have covered all most all offpage techniques ,i never heard about css submission try to do micro blogging & guest blogging

Off-Page optimization is depends on following link building strategies.

1.   Forum Submissions
2.   Article submission in high PR directories
3.   Social Media Bookmarking
4.   Link Exchanging
5.   Directory submissions
6.   Blog commenting

I know everything you listed in this post ,except Social Media Optimization,what is it?

It looks like you've covered the bases for off-page SEO. The important thing with off-page SEO is to make sure you are doing your SEO work consistently each day for the best results. This is crucial to the success of your site.

Hey thanks for sharing it with us. It probably you have cover all the features been used in SEO.

Excellent list. Everything that I know is mentioned there but what exactly CSS submission is? I heard that before but not sure how to use it. Can you put some light on this???

hey...
Here are some main points of methods of off page optimization...
1 Social Bookmarking
2 Article Submission
3 Press Release
4 Forum Posting
5 Affiliate Marketing
6 Bloging

I am following very few of this off page optimization methods. My favorite are article submission in high PR article directories, dofollow participation and guest blogging.

Covers all the features that are come in Off-Page optimization. But I have confusion about the micro blogging. Can you plz elaborate about it.

I think Classified post is the most important methods for OFF Page Optimizationin .I have already used and get more benefit(traffic & ranking)  from following free classified website  :-

Adsglobe.com
Quikr
ads2india.com
Clickindia
OLX
Kugli
Expatriates
Meramaal
Adbhai
ilist

Thanks for sharing useful information. I don't know what is CSS submission. Can u please help me on this??

For improve traffic towards your website and add more back links off topic SEO Services are more helpful.
Some Off Site SEO Techniques are as follow :
1. Social bookmarking
2. Directory Submission
3. Forum Posting
4. Blog Commenting
5. Article Submission

Hey....
I think most important method of off page optimization is
Article submission
It is most famous as well as important... It is great source for increasing page rank and traffic...
My second choice would be..
Social bookmarking

Thanks for sharing. Some of the methods which I use are: social bookmarking, directory submission, article submission, email marketing, forum posting, press release and video release.

Hi friends.......

According to me forum posting is the best method SEO. Through forum posting you can increase your website backlinks. Higher backlinks leads to higher rank in google.
Therefore, forum posting is the method of SEO.


regards,,

kumkum

Directory
social bookmarking
forum commenting
blog commenting
article submission

I think linkbuilding is a most effective and most important method in off-page optimization.It has many tactics in it.It helps in generating targeted traffic as well pagerank up in the search engine.Some linkbuilding tactics are Blogging,Directory Submission,Link Buy,Video Posting.

hi
thanks .i think  you have covered all points of off page optimization

Methods for OFF Page Optimization are as below :

1) Blog commenting
2) Article submission
3) Directory submission
4) Forum posting
5) Keyword research

Covers all the features that are come in Off-Page optimization. But I have confusion about the micro blogging. Can you plz elaborate about it.

According to my point of view, blog commenting, forum posting, article and directory submission are the best off page strategies.

Blog commenting is most effective method of off page seo... because we put direct links without any registration on indexed page.. so think it better for SEO..

For improve traffic towards your website and add more back links off topic SEO Services are more helpful.
Some Off Site SEO Techniques are as follow :
1. Social bookmarking
2. Directory Submission
3. Forum Posting
4. Blog Commenting
5. Article Submission