How do I control who can view my blog?

By default, your blog is completely public, and can be read by anyone on the internet. However, if you want to keep it private, you can do that, too. The setting for this is on the Settings | Permissions tab.
Under the Blog Readers heading, you'll probably see "Anybody" selected as the default. When you change this to "Only readers I choose," you'll get an Add Readers button.
Click the Add Readers button and then enter the email address of a person to whom you want to grant access to your blog. To add multiple people, separate their addresses with commas.
For each address entered, the Google Account associated with that address will be given access to view your blog. If an address is not associated with an account, that person will be sent an invitation email with a link allowing them do one of three things:

• Sign in to an existing account.
• Create a new account.
• View your blog as a guest (no account required).
  

How do I setup an FTP (or sFTP) connection to my external web host?

Go to Settings | Publishing:
and select a connection method:
Then, enter your settings:








When you're done, save your server details via the Save Settings button at the bottom, and republish your blog.
Notes :

What is the FTP path ?

FTP path tells Blogger where to place your blog files on your server. It should be of this format:

directory/directory/ (be sure to include the trailing slash)

If you're familiar with FTP, your "path" is your web-accessible directory. For example, it might be 'htdocs' or 'www' or 'public_html' Or, if you want to put your blog in a subdirectory, 'htdocs/blog/' etc.
If all this sounds a bit complicated, try contacting your hosting provider for help. They can tell you how things should be set up for your specific server.
Notes:

• Do NOT use http://, ftp:// or ftp.example.com (your server's address)
• The directory you specify must already exist on your FTP Server
• This must not be an absolute path - it should be relative to your ftp root location on the server.

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Detailed Example (optional)

How can I let people email my posts to their friends?

Email This Post enables your blog readers to share your posts with others.
Let's say a visitor to your blog just loves your post about The Secret Valor of Chickens. Now that visitor can let her friends know about your discovery by emailing out a link to your post. It's a great way to let your readers share what they've seen on your blog.
To enable this feature, set Show Email Post links? to Yes in the Settings | Basic tab in Blogger:
Here's what they look like:

Notes:

• To prevent spamming and encourage blog visits, a link is sent via email rather than the post body
• If you have a classic template, you must have the <$BlogMetaData$> tag in your Template's section, and the <$BlogItemControl$> tag wherever you want the Mail links to appear. We suggest somewhere in your "posted by" line. (Our default templates already have all the correct code.)
• If you're publishing via FTP, you'll need to republish your blog's index page in order for the links to appear.
• CSS files are aggressively cached by browsers for performance reasons. This means you may have to reload or even super-reload (using the shift key) to make links appear after you first enable them.

http://www.google.com/support/blogger