Theimposter, as someone with a one year old, can I put a different spin on it for you? I had my child late, at almost forty, and got used to a lot of my friends 'disappearing' into parenthood for years at a time. I too, felt sad and resentful about this, and assumed they had forgotten all about me and had other priorities.
BUT, having had a child fairly recently myself, I have simply found it very difficult. Circumstances have meant moving away to somewhere very rural, where we have no support network, no family, almost no childcare, DH works very long hours 6 days a week, and I've had to take extended leave from my job. I'm sure friends think I'm just blithely forgetting them, but I'm not, I'm just struggling. I think of them often, but I'm busy when my child is awake, working when he naps, and by the time he goes to bed at night (he's a terrible sleeper, and last night it was close to ten o'clock), I am too tired to pick up the phone.
Don't write off your friends - they may well appreciate your gifts and think of you often, but aren't for whatever reason able to respond as you would like.
(Sorry for hijack, OP.)