During 5 years of reading about flying I still use some pages the most where are:
Statusmatcher – at this page You can find which airline/hotel/car rental program status could You give status at another program. For example I found out to matching my Aegean Gold Card to LATAM Platinium card (one world) which gave me benefit to visit First Class One World lounges then I had only silver card with BA. I just had to write email and I was lucky what I had one flight with Latam airline in last 12 months.
WhereToCredit is the way to find out where I should credit flights when I fly new airline, sometimes You can get 100% more miles if You do maths, but always be in mind of redemption what You looking for.
Awardwallet – at this site You can check all Your points and miles balances, even You will get notification when some miles will expiry.