Jennifer Chen

Good tips above. Google Alerts is what I always start with since it's free, so at a minimum have this set up and get into a habit of checking the alerts. If your company or team has budget, you can look into competitive intelligence services such as https://www.crayon.co/ or https://klue.com/. I haven't used either one before so I can't speak more to it, but it's something I can imagine being quite helpful. 

Sorry to hear that you're struggling when all you're trying to do is also to help drive business for the company! But unless you truly work in a male chauvinist company and or directly received sexist comments, I believe some of the struggles that you are feeling most likely stem from other teams not understanding what product marketing does or specifically what your role would be in relation to theirs. Many might just have preconceived notions of what marketing does and don't make a connection to what you actually do as a product marketer. If you're new to your team or company, ideally, your manager would help make introductions to the heads of or to different people on the other teams, and give a quick summary of what you'll be working on to help them and what your team will need help with. Doing this helps to set up the initial expectations between you and the other team, but more importantly gets you connected so that you can now follow up on these introductions for a deeper conversation. If there's no one to help set up those initial introductions, then I would suggest setting up 1:1s directly and starting the conversation from there yourself. Express your interest in learning what they do, so that you can understand how best you can help them. Also, like what @Elizabeth Brigham mentioned, show them what you're working on and that you'd love to get their inputs. Or casually bring up to someone what you're working on, that you think you could use their help, and offer to buy them lunch to talk about it. I had a colleague who was always generous and frequently bought lunches for sales and other folks in different organizations. I think it greatly helped form his relationships. Ultimately, the key is to form a relationship with members of the other teams. It should get easier thereafter. I also second @Kimberly Blight 's suggestion on finding allies. They can be women or men. If I were there in the room with you, girl, I got your back! :)