There are a number of different resources available to children with developmental delays. The best resource is your child's pediatrician. They will be able to guide you to the right web sites, the right books, and even the right people who can better help your child and you during this journey. A number of other web sites to look at are the Center for Disease Control and Prevention. They have a great developmental milestone checklist, and they have great resources there.
There might also be local chapters within your community where you can discuss with other parents going through the same thing. For example, there are moms groups. There are special needs communities within local environments, and you should seek those, because the best thing to do for you own well-being is to connect with other parents that are going through the same thing. They may have tried something that worked for them and could possibly work for you, too. But you won't know until you meet these individuals.
You can now feel that you have a place and an outlet where you can express your thoughts, and people can provide you with suggestions. At the end of the day, they've gone through it, or they're going through it along with you. So remember, speak with your child's pediatrician. Find local outlets. Connect with parents within your neighborhood or maybe slightly beyond that are going through the same thing as you are, that can help give you advice and can listen to your thoughts and opinions and be there for you through your journey.