I prefer tailing logs with less (rather than tail) so that the file is searchable (using '/ searchterm'). Then if you start following the file (using 'F'), your search term will be highlighted in the followed file.
alias ltail="less -Ri +F"
so you don't have to remember to hit 'F'.(I generally add -Ri: -R to pass through unprintable characters to avoid borking coloured output; -i so searches are case-insensitive.)