package main

import (
    "fmt"
    "net/http"
    "time"
)

func main() {
    links := []string{
        "http://sportacentrs.com",
        "http://tvnet.lv",
        "unknown website",
        "http://google.com",
    }
    c := make(chan string)
    for _, n := range links {
        go checkLink(n, c)
    }
    for li := range c {
        go func(self string) {
            time.Sleep(5 * time.Second)
            checkLink(self, c)
        }(li)
    }
}

func checkLink(link string, c chan string) {
    _, err := http.Get(link)
    if err != nil {
        fmt.Println(link, "didnt work.")
        c <- link
        return
    }
    fmt.Println(link, "worked.")
    c <- link
}