An important part of networking is what you can do for others. Many people don’t know what they can offer.
One of the things you can do, is sharing expertise or information.
For example your favorite links about a specific subject or books that you recommend.
And I have a list of networking books I recommend on Amazon.
You can do the same. Both services are free to use.
And one extra side effect is that it improves your web presence and visibility. People will find you sooner and will perceive you faster as an expert.
To your success !