What is the link to your blog?
From the 8 Things To Know Before Posting in WordPress.Com Forums
2. How to make your name link to your blog:
Go into your dashboard -> users -> your profile -> then scroll down to ‘contact info’. In the spot where it says ‘website’ fill in the address of your blog and save the changes.
Now… when you comment here and on other blogs, your name will link to your blog. If you do this before you post your request for help, it will allow forum volunteers to be able to help you quicker since they won’t have to ask you for a link and wait until you come back to post one.
Go to the post you want to make an excerpt, and go to the edit page and on there, you should see a spellchecker button and next to that on the left, theres a read more tag you can use. Place the tag anywhere in the text.