I like what you did with #48 in merging the H and E. I think working with that some more could yield something pretty sick. I also like the fonts of both #50 and #49, #49 especially, and everything in all caps looks awesome as well. The TE aspects that you're working with are reminding me of Twitter just a bit too much, and then the one in all grey is a bit hard for me to figure out. Perhaps tweaking that some more could be beneficial if you have desire to do so. thanks