Hello , I have this LLLL.com , i bought it about 11 years ago and never did something with it , it's due to renewal soon ... Should i renew it ? does 4 letters still have any value these days ? Thanks for your honest input !
Yes, they can have quite a bit of value. Build it up, get some backlinks, and then sell it on an auction site.
They are valuable domains, renew it and work on it to make it more worthy and after that you can sale it out anywhere.
If it is 11 years old, develop it as it will grow much faster. It is my own personal experience wit my RC blog. Keep it.