Comm100 Live Chat can be installed on Blogger/Blogspot. 

Step by Step Instructions

To install Comm100 Live Chat on Blogger, follow these steps: 

1. Log into your Blogger/Blogspot account and click the Layout tab.
   
2. Click Add a Gadget on the position where you want to add the chat button.
   
3. In the Add a Gadget window, scroll down the page and find the HTML/JavaScript gadget.
4. Click the Plus icon.
   
5. Log into your Comm100 account and get your live chat code.
6. On the new HTML/JavaScript gadget window, enter a title for the gadget, then paste the live chat code into the Content area, as seen in the following figure.
   
   Note: A good title will alert your readers that this is the online chat support on your site.
7. Click Save.
   The gadget should now be visible in your blog’s layout.

Now, you’ve just embedded Comm100 Live Chat to your Blogger/Blogspot! You can now use the Blogger Layout tab to drag the live help widget wherever you want in your blog’s layout.