LinkedIn is a great place to do networking. You can join a group, answer questions and connect with others in your industry. A lot of businesses have focused on Facebook and Twitter but have withheld from broadening their LinkedIn presence. It is not too late to fix this. Use a Benchmark LinkedIn Email Template, and ask your subscribers to connect with you on LinkedIn.
Free LinkedIn Templates from Benchmark

The LinkedIn templates are located in the Social Media section of the templates page. Choose one, then continue to the Email Editor. In the editor, you will want to change the placeholder image to your profile picture. You will also want to add a link to the “View My Profile on LinkedIn” button. Do this by selecting each item and clicking either Image or Insert Link from the Insert Additional Elements menu on the left.