1.Go to GoogleDocs.U might be asked to login to Google.
2. Add the fields in your Form according to your requirement.You can change the themes of your form if you want which totally depends on you.
3.Click on MoreAction then Embed to get the Code.It will be something like this.
<iframe src="http://spreadsheets.google.com/embeddedform?key=t4wmB5H0ZYtznVr-1NTPQ7w" width="760" height="753" frameborder="0" marginheight="0" marginwidth="0">Loading...</iframe>Note: Donot use Above code this it will not Work.
4.Copy the link at the bottom of the page and make a note of it - this is the URL you'll need to link to if you want people to click on a link and fill in your form. If you want your readers fill in your form.
5.Set notifications rules.(how u will be notified whenever anyone fill your form).
6.Paste the code from step 3 in your blogger.
See an example below:
Note:Please do not fill this form to contact me.this is Dummy form.You can contact me here
If you have any problem making this form.Just drop a comment I will surely try to help You.