In this only
Forum Posting
Article Submission
Press Release Submission
Video Submission
Social Media Optimization
Its enough for off-page.

please share some forum posting site list

i don't know how to do rss submission

thanks for sharing with us.

Following are the OFF PAGE TECHNIQUES:
Directory Submission
Social Bookmarking
Search Engine Submission
Blog Posting
Blog Commenting
Classifieds
Forum Posting
PDFSubmission
Web 2.0
RSS Feed Submission
Social Medis Optimization

Whatever techniques you decide to use to promote your website, it is better to be certain of what you are trying to achieve. It does not necessary mean all techniques work for any site. Most importantly make sure you don't get penalized by Google or any search engine, because it is very difficult to recover from this. Most people are forced to start with a new domain when penalized; I am sure nobody wants that.
If you find your site not going up in the ranking, it is a good idea to check "in Google webmaster tools" if your site is suffering from a Google manual penalty or algorithm penalty. If Google can penalize Ebay (last month, manual penalty), they can penalized any website.

Thanks For all you comment on SEO Off page technique this all submission will help you

thanks to share off Page SEO Techniques

The best techniques are
# Directory Submission
# Blog Posting
# Forum Posting
# Social Bookmarking Submission
# Footer Links

various off page SEO techniques :

Search Engine Submission
Directory Submission
Social Bookmarking
Classifed Submission
Social Media Posting
Forum Posting
ImgeSharing
Article Submission
Custom Blogs
Classified Submissions